diff --git a/.github/workflows/codeql-analysis.yml b/.github/workflows/codeql-analysis.yml
index 5539cec9..01be8b25 100644
--- a/.github/workflows/codeql-analysis.yml
+++ b/.github/workflows/codeql-analysis.yml
@@ -25,7 +25,7 @@ jobs:
     steps:
     -
       name: Checkout repository
-      uses: actions/checkout@v3.3.0
+      uses: actions/checkout@v3.4.0
     # Initializes the CodeQL tools for scanning.
     -
       name: Initialize CodeQL
diff --git a/.github/workflows/sync-back-to-dev.yml b/.github/workflows/sync-back-to-dev.yml
index 89b6323f..0fe850d1 100644
--- a/.github/workflows/sync-back-to-dev.yml
+++ b/.github/workflows/sync-back-to-dev.yml
@@ -5,13 +5,35 @@ on:
     branches:
       - master
 
+# The section is needed to drop the default write-all permissions for all jobs
+# that are granted on `push` event. By specifying any permission explicitly
+# all others are set to none. By using the principle of least privilege the damage a compromised
+# workflow can do (because of an injection or compromised third party tool or
+# action) is restricted. Adding labels to issues, commenting
+# on pull-requests, etc. may need additional permissions:
+#
+# Syntax for this section:
+# https://docs.github.com/en/actions/using-workflows/workflow-syntax-for-github-actions#permissions
+#
+# Reference for how to assign permissions on a job-by-job basis:
+# https://docs.github.com/en/actions/using-jobs/assigning-permissions-to-jobs
+#
+# Reference for available permissions that we can enable if needed:
+# https://docs.github.com/en/actions/security-guides/automatic-token-authentication#permissions-for-the-github_token
+permissions: {}
+
 jobs:
   sync-branches:
+    # The job needs to be able to pull the code and create a pull request.
+    permissions:
+      contents: read #  for actions/checkout
+      pull-requests: write #  to create pull request
+
     runs-on: ubuntu-latest
     name: Syncing branches
     steps:
       - name: Checkout
-        uses: actions/checkout@v3.3.0
+        uses: actions/checkout@v3.4.0
       - name: Opening pull request
         run: gh pr create -B development -H master --title 'Sync master back into development' --body 'Created by Github action' --label 'internal'
         env:
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index ce948e09..27867ef3 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -13,7 +13,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v3.3.0
+        uses: actions/checkout@v3.4.0
 
       - name: Check scripts in repository are executable
         run: |
@@ -62,7 +62,7 @@ jobs:
       DISTRO: ${{matrix.distro}}
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v3.3.0
+        uses: actions/checkout@v3.4.0
 
       - name: Set up Python 3.10
         uses: actions/setup-python@v4.5.0
diff --git a/advanced/Scripts/piholeDebug.sh b/advanced/Scripts/piholeDebug.sh
index ad25e866..fa1cebbb 100755
--- a/advanced/Scripts/piholeDebug.sh
+++ b/advanced/Scripts/piholeDebug.sh
@@ -230,7 +230,7 @@ initialize_debug() {
 
 # This is a function for visually displaying the current test that is being run.
 # Accepts one variable: the name of what is being diagnosed
-# Colors do not show in the dasboard, but the icons do: [i], [✓], and [✗]
+# Colors do not show in the dashboard, but the icons do: [i], [✓], and [✗]
 echo_current_diagnostic() {
     # Colors are used for visually distinguishing each test in the output
     # These colors do not show in the GUI, but the formatting will
diff --git a/advanced/Scripts/query.sh b/advanced/Scripts/query.sh
index d48e9363..12295fbc 100755
--- a/advanced/Scripts/query.sh
+++ b/advanced/Scripts/query.sh
@@ -30,33 +30,6 @@ gravityDBfile="${GRAVITYDB}"
 colfile="/opt/pihole/COL_TABLE"
 source "${colfile}"
 
-# Scan an array of files for matching strings
-scanList(){
-    # Escape full stops
-    local domain="${1}" esc_domain="${1//./\\.}" lists="${2}" list_type="${3:-}"
-
-    # Prevent grep from printing file path
-    cd "$piholeDir" || exit 1
-
-    # Prevent grep -i matching slowly: https://bit.ly/2xFXtUX
-    export LC_CTYPE=C
-
-    # /dev/null forces filename to be printed when only one list has been generated
-    case "${list_type}" in
-        "exact" ) grep -i -E -l "(^|(?<!#)\\s)${esc_domain}($|\\s|#)" ${lists} /dev/null 2>/dev/null;;
-        # Iterate through each regexp and check whether it matches the domainQuery
-        # If it does, print the matching regexp and continue looping
-        # Input 1 - regexps | Input 2 - domainQuery
-        "regex" )
-            for list in ${lists}; do
-                if [[ "${domain}" =~ ${list} ]]; then
-                    printf "%b\n" "${list}";
-                fi
-            done;;
-        *       ) grep -i "${esc_domain}" ${lists} /dev/null 2>/dev/null;;
-    esac
-}
-
 if [[ "${options}" == "-h" ]] || [[ "${options}" == "--help" ]]; then
     echo "Usage: pihole -q [option] <domain>
 Example: 'pihole -q -exact domain.com'
@@ -84,17 +57,47 @@ options=$(sed -E 's/ ?-(all|exact) ?//g' <<< "${options}")
 case "${options}" in
     ""             ) str="No domain specified";;
     *" "*          ) str="Unknown query option specified";;
-    *[![:ascii:]]* ) domainQuery=$(idn2 "${options}");;
-    *              ) domainQuery="${options}";;
+    *[![:ascii:]]* ) rawDomainQuery=$(idn2 "${options}");;
+    *              ) rawDomainQuery="${options}";;
 esac
 
+# convert the domain to lowercase
+domainQuery=$(echo "${rawDomainQuery}" | tr '[:upper:]' '[:lower:]')
+
 if [[ -n "${str:-}" ]]; then
     echo -e "${str}${COL_NC}\\nTry 'pihole -q --help' for more information."
     exit 1
 fi
 
+# Scan an array of files for matching strings
+scanList(){
+    # Escape full stops
+    local domain="${1}" esc_domain="${1//./\\.}" lists="${2}" list_type="${3:-}"
+
+    # Prevent grep from printing file path
+    cd "$piholeDir" || exit 1
+
+    # Prevent grep -i matching slowly: https://bit.ly/2xFXtUX
+    export LC_CTYPE=C
+
+    # /dev/null forces filename to be printed when only one list has been generated
+    case "${list_type}" in
+        "exact" ) grep -i -E -l "(^|(?<!#)\\s)${esc_domain}($|\\s|#)" "${lists}" /dev/null 2>/dev/null;;
+        # Iterate through each regexp and check whether it matches the domainQuery
+        # If it does, print the matching regexp and continue looping
+        # Input 1 - regexps | Input 2 - domainQuery
+        "regex" )
+            for list in ${lists}; do
+                if [[ "${domain}" =~ ${list} ]]; then
+                    printf "%b\n" "${list}";
+                fi
+            done;;
+        *       ) grep -i "${esc_domain}" "${lists}" /dev/null 2>/dev/null;;
+    esac
+}
+
 scanDatabaseTable() {
-    local domain table list_type querystr result extra
+    local domain table list_type querystr result extra abpquerystr abpfound abpentry searchstr
     domain="$(printf "%q" "${1}")"
     table="${2}"
     list_type="${3:-}"
@@ -104,9 +107,34 @@ scanDatabaseTable() {
     # behavior. The "ESCAPE '\'" clause specifies that an underscore preceded by an '\' should be matched
     # as a literal underscore character. We pretreat the $domain variable accordingly to escape underscores.
     if [[ "${table}" == "gravity" ]]; then
+
+        # Are there ABP entries on gravity?
+        # Return 1 if abp_domain=1 or Zero if abp_domain=0 or not set
+        abpquerystr="SELECT EXISTS (SELECT 1 FROM info WHERE property='abp_domains' and value='1')"
+        abpfound="$(pihole-FTL sqlite3 "${gravityDBfile}" "${abpquerystr}")" 2> /dev/null
+
+        # Create search string for ABP entries only if needed
+        if [ "${abpfound}" -eq 1 ]; then
+            abpentry="${domain}"
+
+            searchstr="'||${abpentry}^'"
+
+            # While a dot is found ...
+            while [ "${abpentry}" != "${abpentry/./}" ]
+            do
+                # ... remove text before the dot (including the dot) and append the result to $searchstr
+                abpentry=$(echo "${abpentry}" | cut -f 2- -d '.')
+                searchstr="$searchstr, '||${abpentry}^'"
+            done
+
+            # The final search string will look like:
+            # "domain IN ('||sub2.sub1.domain.com^', '||sub1.domain.com^', '||domain.com^', '||com^') OR"
+            searchstr="domain IN (${searchstr}) OR "
+        fi
+
         case "${exact}" in
             "exact" ) querystr="SELECT gravity.domain,adlist.address,adlist.enabled FROM gravity LEFT JOIN adlist ON adlist.id = gravity.adlist_id WHERE domain = '${domain}'";;
-            *       ) querystr="SELECT gravity.domain,adlist.address,adlist.enabled FROM gravity LEFT JOIN adlist ON adlist.id = gravity.adlist_id WHERE domain LIKE '%${domain//_/\\_}%' ESCAPE '\\'";;
+            *       ) querystr="SELECT gravity.domain,adlist.address,adlist.enabled FROM gravity LEFT JOIN adlist ON adlist.id = gravity.adlist_id WHERE ${searchstr} domain LIKE '%${domain//_/\\_}%' ESCAPE '\\'";;
         esac
     else
         case "${exact}" in
@@ -116,7 +144,7 @@ scanDatabaseTable() {
     fi
 
     # Send prepared query to gravity database
-    result="$(pihole-FTL sqlite3 "${gravityDBfile}" "${querystr}")" 2> /dev/null
+    result="$(pihole-FTL sqlite3 -separator ',' "${gravityDBfile}" "${querystr}")" 2> /dev/null
     if [[ -z "${result}" ]]; then
         # Return early when there are no matches in this table
         return
@@ -136,8 +164,8 @@ scanDatabaseTable() {
     # Loop over results and print them
     mapfile -t results <<< "${result}"
     for result in "${results[@]}"; do
-        domain="${result/|*}"
-        if [[ "${result#*|}" == "0" ]]; then
+        domain="${result/,*}"
+        if [[ "${result#*,}" == "0" ]]; then
             extra=" (disabled)"
         else
             extra=""
@@ -212,10 +240,10 @@ if [[ -n "${exact}" ]]; then
 fi
 
 for result in "${results[@]}"; do
-    match="${result/|*/}"
-    extra="${result#*|}"
-    adlistAddress="${extra/|*/}"
-    extra="${extra#*|}"
+    match="${result/,*/}"
+    extra="${result#*,}"
+    adlistAddress="${extra/,*/}"
+    extra="${extra#*,}"
     if [[ "${extra}" == "0" ]]; then
         extra=" (disabled)"
     else
diff --git a/advanced/Scripts/utils.sh b/advanced/Scripts/utils.sh
index 37516472..2d3c7fb1 100755
--- a/advanced/Scripts/utils.sh
+++ b/advanced/Scripts/utils.sh
@@ -44,7 +44,7 @@ addOrEditKeyValPair() {
 }
 
 #######################
-# Takes two arguments: file, and key.
+# Takes two arguments: file and key.
 # Adds a key to target file
 #
 # Example usage:
@@ -57,14 +57,18 @@ addKey(){
   # touch file to prevent grep error if file does not exist yet
   touch "${file}"
 
-  if ! grep -q "^${key}" "${file}"; then
+  # Match key against entire line, using both anchors. We assume
+  # that the file's keys never have bounding whitespace. Anchors
+  # are necessary to ensure the key is considered absent when it
+  # is a substring of another key present in the file.
+  if ! grep -q "^${key}$" "${file}"; then
     # Key does not exist, add it.
     echo "${key}" >> "${file}"
   fi
 }
 
 #######################
-# Takes two arguments: file, and key.
+# Takes two arguments: file and key.
 # Deletes a key or key/value pair from target file
 #
 # Example usage:
@@ -76,6 +80,24 @@ removeKey() {
   sed -i "/^${key}/d" "${file}"
 }
 
+#######################
+# Takes two arguments: file and key.
+# Returns the value of a given key from target file
+# - ignores all commented lines
+# - only returns the first value if multiple identical keys exist
+#
+#
+# Example usage:
+# getVal "/etc/pihole/setupVars.conf" "PIHOLE_DNS_1"
+#######################
+getVal() {
+  local file="${1}"
+  local key="${2}"
+  local value
+  value=$(sed -e '/^[[:blank:]]*#/d' "${file}" | grep "${key}" | awk -F "=" 'NR==1{printf$2}')
+  printf "%s" "$value"
+}
+
 
 #######################
 # returns FTL's current telnet API port based on the setting in /etc/pihole-FTL.conf
diff --git a/automated install/basic-install.sh b/automated install/basic-install.sh
index ccb5eac7..a781f8c6 100755
--- a/automated install/basic-install.sh	
+++ b/automated install/basic-install.sh	
@@ -2612,7 +2612,8 @@ main() {
 
         # Get the privacy level if it exists (default is 0)
         if [[ -f "${FTL_CONFIG_FILE}" ]]; then
-            PRIVACY_LEVEL=$(sed -ne 's/PRIVACYLEVEL=\(.*\)/\1/p' "${FTL_CONFIG_FILE}")
+            # use getVal from utils.sh to get PRIVACYLEVEL
+            PRIVACY_LEVEL=$(getVal "${FTL_CONFIG_FILE}" "PRIVACYLEVEL")
 
             # If no setting was found, default to 0
             PRIVACY_LEVEL="${PRIVACY_LEVEL:-0}"
diff --git a/automated install/uninstall.sh b/automated install/uninstall.sh
index c36027fc..7a1a290d 100755
--- a/automated install/uninstall.sh	
+++ b/automated install/uninstall.sh	
@@ -193,6 +193,18 @@ removeNoPurge() {
         else
             service pihole-FTL stop
         fi
+        ${SUDO} rm -f /etc/systemd/system/pihole-FTL.service
+        if [[ -d '/etc/systemd/system/pihole-FTL.service.d' ]]; then
+            read -rp "  ${QST} FTL service override directory /etc/systemd/system/pihole-FTL.service.d detected. Do you wish to remove this from your system? [y/N] " answer
+            case $answer in
+                [yY]*)
+                    echo -ne "  ${INFO} Removing /etc/systemd/system/pihole-FTL.service.d..."
+                    ${SUDO} rm -R /etc/systemd/system/pihole-FTL.service.d
+                    echo -e "${OVER}  ${INFO} Removed /etc/systemd/system/pihole-FTL.service.d"
+                ;;
+                *) echo -e "  ${INFO} Leaving /etc/systemd/system/pihole-FTL.service.d in place.";;
+            esac
+        fi
         ${SUDO} rm -f /etc/init.d/pihole-FTL
         ${SUDO} rm -f /usr/bin/pihole-FTL
         echo -e "${OVER}  ${TICK} Removed pihole-FTL"
diff --git a/gravity.sh b/gravity.sh
index c2795442..ca859e38 100755
--- a/gravity.sh
+++ b/gravity.sh
@@ -52,6 +52,14 @@ else
   exit 1
 fi
 
+# Set up tmp dir variable in case it's not configured
+: "${GRAVITY_TMPDIR:=/tmp}"
+
+if [ ! -d "${GRAVITY_TMPDIR}" ] || [ ! -w "${GRAVITY_TMPDIR}" ]; then
+  echo -e "  ${COL_LIGHT_RED}Gravity temporary directory does not exist or is not a writeable directory, falling back to /tmp. ${COL_NC}"
+  GRAVITY_TMPDIR="/tmp"
+fi
+
 # Source pihole-FTL from install script
 pihole_FTL="${piholeDir}/pihole-FTL.conf"
 if [[ -f "${pihole_FTL}" ]]; then
@@ -137,6 +145,18 @@ update_gravity_timestamp() {
   return 0
 }
 
+# Update timestamp when the gravity table was last updated successfully
+set_abp_info() {
+  pihole-FTL sqlite3 "${gravityDBfile}" "INSERT OR REPLACE INTO info (property,value) VALUES ('abp_domains',${abp_domains});"
+  status="$?"
+
+  if [[ "${status}" -ne 0 ]]; then
+    echo -e "\\n  ${CROSS} Unable to update ABP domain status in database ${gravityDBfile}\\n  ${output}"
+    return 1
+  fi
+  return 0
+}
+
 # Import domains from file and store them in the specified database table
 database_table_from_file() {
   # Define locals
@@ -145,7 +165,7 @@ database_table_from_file() {
   src="${2}"
   backup_path="${piholeDir}/migration_backup"
   backup_file="${backup_path}/$(basename "${2}")"
-  tmpFile="$(mktemp -p "/tmp" --suffix=".gravity")"
+  tmpFile="$(mktemp -p "${GRAVITY_TMPDIR}" --suffix=".gravity")"
 
   local timestamp
   timestamp="$(date --utc +'%s')"
@@ -418,7 +438,7 @@ gravity_DownloadBlocklists() {
     echo -e "${OVER}  ${TICK} ${str}"
   fi
 
-  target="$(mktemp -p "/tmp" --suffix=".gravity")"
+  target="$(mktemp -p "${GRAVITY_TMPDIR}" --suffix=".gravity")"
 
   # Use compression to reduce the amount of data that is transferred
   # between the Pi-hole and the ad list provider. Use this feature
@@ -519,64 +539,69 @@ gravity_DownloadBlocklists() {
   gravity_Blackbody=true
 }
 
-# num_total_imported_domains increases for each list processed
-num_total_imported_domains=0
-num_domains=0
-num_non_domains=0
+
+# global variable to indicate if we found ABP style domains during the gravity run
+# is saved in gravtiy's info table to signal FTL if such domains are available
+abp_domains=0
 parseList() {
-  local adlistID="${1}" src="${2}" target="${3}" non_domains sample_non_domains tmp_non_domains_str false_positive
-  # This sed does the following things:
-  # 1. Remove all lines containing no domains
-  # 2. Remove all domains containing invalid characters. Valid are: a-z, A-Z, 0-9, dot (.), minus (-), underscore (_)
-  # 3. Append ,adlistID to every line
-  # 4. Remove trailing period (see https://github.com/pi-hole/pi-hole/issues/4701)
-  # 5. Ensures there is a newline on the last line
-  sed -r  "/([^\.]+\.)+[^\.]{2,}/!d;/[^a-zA-Z0-9.\_-]/d;s/\.$//;s/$/,${adlistID}/;/.$/a\\" "${src}" >> "${target}"
+  local adlistID="${1}" src="${2}" target="${3}" temp_file temp_file_base non_domains sample_non_domains valid_domain_pattern abp_domain_pattern
+
+  # Create a temporary file for the sed magic instead of using "${target}" directly
+  # this allows to split the sed commands to improve readability
+  # we use a file handle here and remove the temporary file immediately so the content will be deleted in any case
+  # when the script stops
+  temp_file_base="$(mktemp -p "/tmp" --suffix=".gravity")"
+  exec 3>"$temp_file_base"
+  rm "${temp_file_base}"
+  temp_file="/proc/$$/fd/3"
+
+  # define valid domain patterns
+  # no need to include uppercase letters, as we convert to lowercase in gravity_ParseFileIntoDomains() already
+  # adapted from https://stackoverflow.com/a/30007882
+  # supported ABP style: ||subdomain.domain.tlp^
+
+  valid_domain_pattern="([a-z0-9]([a-z0-9_-]{0,61}[a-z0-9]){0,1}\.)+[a-z0-9][a-z0-9-]{0,61}[a-z0-9]"
+  abp_domain_pattern="\|\|${valid_domain_pattern}\^"
+
+
+  # 1. Add all valid domains
+    sed -r "/^${valid_domain_pattern}$/!d" "${src}" > "${temp_file}"
+
+  # 2. Add valid ABP style domains if there is at least one such domain
+  if  grep -E "^${abp_domain_pattern}$" -m 1 -q "${src}"; then
+    echo "  ${INFO} List contained AdBlock Plus style domains"
+    abp_domains=1
+    sed -r "/^${abp_domain_pattern}$/!d" "${src}" >> "${temp_file}"
+  fi
+
 
-  # Find lines containing no domains or with invalid characters (see above)
+  # Find lines containing no domains or with invalid characters (not matching regex above)
+  # This is simply everything that is not in $temp_file compared to $src
   # Remove duplicates from the list
-  mapfile -t non_domains <<< "$(sed -r "/([^\.]+\.)+[^\.]{2,}/d" < "${src}")"
-  mapfile -t -O "${#non_domains[@]}" non_domains <<< "$(sed -r "/[^a-zA-Z0-9.\_-]/!d" < "${src}")"
-  IFS=" " read -r -a non_domains <<< "$(tr ' ' '\n' <<< "${non_domains[@]}" | sort -u | tr '\n' ' ')"
+  mapfile -t non_domains < <(grep -Fvf "${temp_file}" "${src}" | sort -u )
+
+  # 3. Remove trailing period (see https://github.com/pi-hole/pi-hole/issues/4701)
+  # 4. Append ,adlistID to every line
+  # 5. Ensures there is a newline on the last line
+  # and write everything to the target file
+  sed "s/\.$//;s/$/,${adlistID}/;/.$/a\\" "${temp_file}" >> "${target}"
 
   # A list of items of common local hostnames not to report as unusable
   # Some lists (i.e StevenBlack's) contain these as they are supposed to be used as HOST files
   # but flagging them as unusable causes more confusion than it's worth - so we suppress them from the output
-  false_positives=(
-    "localhost"
-    "localhost.localdomain"
-    "local"
-    "broadcasthost"
-    "localhost"
-    "ip6-localhost"
-    "ip6-loopback"
-    "lo0 localhost"
-    "ip6-localnet"
-    "ip6-mcastprefix"
-    "ip6-allnodes"
-    "ip6-allrouters"
-    "ip6-allhosts"
-    )
-
-  # Read the unusable lines into a string
-  tmp_non_domains_str=" ${non_domains[*]} "
-  for false_positive in "${false_positives[@]}"; do
-    # Remove false positives from tmp_non_domains_str
-    tmp_non_domains_str="${tmp_non_domains_str/ ${false_positive} / }"
-  done
-  # Read the string back into an array
-  IFS=" " read -r -a non_domains <<< "${tmp_non_domains_str}"
+  false_positives="localhost|localhost.localdomain|local|broadcasthost|localhost|ip6-localhost|ip6-loopback|lo0 localhost|ip6-localnet|ip6-mcastprefix|ip6-allnodes|ip6-allrouters|ip6-allhosts"
+
+  # if there are any non-domains, filter the array for false-positives
+  # Credit: https://stackoverflow.com/a/40264051
+  if [[ "${#non_domains[@]}" -gt 0 ]]; then
+    mapfile -d $'\0' -t non_domains < <(printf '%s\0' "${non_domains[@]}" | grep -Ezv "^${false_positives}")
+  fi
 
   # Get a sample of non-domain entries, limited to 5 (the list should already have been de-duplicated)
   IFS=" " read -r -a sample_non_domains <<< "$(tr ' ' '\n' <<< "${non_domains[@]}" | head -n 5 | tr '\n' ' ')"
 
-  local tmp_new_imported_total
-  # Get the new number of domains in destination file
-  tmp_new_imported_total="$(grep -c "^" "${target}")"
-  # Number of imported lines for this file is the difference between the new total and the old total. (Or, the number of domains we just added.)
-  num_domains="$(( tmp_new_imported_total-num_total_imported_domains ))"
-  # Replace the running total with the new total.
-  num_total_imported_domains="$tmp_new_imported_total"
+  # Get the number of domains added
+  num_domains="$(grep -c "^" "${temp_file}")"
   # Get the number of non_domains (this is the number of entries left after stripping the source of comments/duplicates/false positives/domains)
   num_non_domains="${#non_domains[@]}"
 
@@ -591,6 +616,9 @@ parseList() {
   else
     echo "  ${INFO} Imported ${num_domains} domains"
   fi
+
+  # close file handle
+  exec 3<&-
 }
 
 compareLists() {
@@ -623,7 +651,7 @@ gravity_DownloadBlocklistFromUrl() {
   local heisenbergCompensator="" patternBuffer str httpCode success="" ip
 
   # Create temp file to store content on disk instead of RAM
-  patternBuffer=$(mktemp -p "/tmp" --suffix=".phgpb")
+  patternBuffer=$(mktemp -p "${GRAVITY_TMPDIR}" --suffix=".phgpb")
 
   # Determine if $saveLocation has read permission
   if [[ -r "${saveLocation}" && $url != "file"* ]]; then
@@ -761,18 +789,30 @@ gravity_ParseFileIntoDomains() {
   # Most of the lists downloaded are already in hosts file format but the spacing/formatting is not contiguous
   # This helps with that and makes it easier to read
   # It also helps with debugging so each stage of the script can be researched more in depth
-  # 1) Remove carriage returns
-  # 2) Convert all characters to lowercase
-  # 3) Remove comments (text starting with "#", include possible spaces before the hash sign)
+  # 1) Convert all characters to lowercase
+  tr '[:upper:]' '[:lower:]' < "${src}" > "${destination}"
+
+  # 2) Remove carriage returns
+  sed -i 's/\r$//' "${destination}"
+
+  # 3a) Remove comments (text starting with "#", include possible spaces before the hash sign)
+  sed -i 's/\s*#.*//g' "${destination}"
+
+  # 3b) Remove lines starting with ! (ABP Comments)
+  sed -i 's/\s*!.*//g' "${destination}"
+
+  # 3c) Remove lines starting with [ (ABP Header)
+  sed -i 's/\s*\[.*//g' "${destination}"
+
   # 4) Remove lines containing "/"
-  # 5) Remove leading tabs, spaces, etc.
+  sed -i -r '/(\/).*$/d' "${destination}"
+
+  # 5) Remove leading tabs, spaces, etc. (Also removes leading IP addresses)
+  sed -i -r 's/^.*\s+//g' "${destination}"
+
   # 6) Remove empty lines
-  < "${src}" tr -d '\r' | \
-  tr '[:upper:]' '[:lower:]' | \
-  sed 's/\s*#.*//g' | \
-  sed -r '/(\/).*$/d' | \
-  sed -r 's/^.*\s+//g' | \
-  sed '/^$/d'>  "${destination}"
+  sed -i '/^$/d' "${destination}"
+
   chmod 644 "${destination}"
 }
 
@@ -828,7 +868,7 @@ gravity_Cleanup() {
   # Delete tmp content generated by Gravity
   rm ${piholeDir}/pihole.*.txt 2> /dev/null
   rm ${piholeDir}/*.tmp 2> /dev/null
-  rm /tmp/*.phgpb 2> /dev/null
+  rm "${GRAVITY_TMPDIR}"/*.phgpb 2> /dev/null
 
   # Ensure this function only runs when gravity_SetDownloadOptions() has completed
   if [[ "${gravity_Blackbody:-}" == true ]]; then
@@ -1005,6 +1045,9 @@ fi
 # Update gravity timestamp
 update_gravity_timestamp
 
+# Set abp_domain info field
+set_abp_info
+
 # Ensure proper permissions are set for the database
 chown pihole:pihole "${gravityDBfile}"
 chmod g+w "${piholeDir}" "${gravityDBfile}"
diff --git a/test/requirements.txt b/test/requirements.txt
index 08e7027a..8ba6156f 100644
--- a/test/requirements.txt
+++ b/test/requirements.txt
@@ -1,6 +1,6 @@
 docker-compose == 1.29.2
-pytest == 7.2.1
-pytest-xdist == 3.1.0
+pytest == 7.2.2
+pytest-xdist == 3.2.1
 pytest-testinfra == 7.0.0
-tox == 4.4.4
+tox == 4.4.7
 
diff --git a/test/test_any_utils.py b/test/test_any_utils.py
index 5b4075d9..cb5ddeaa 100644
--- a/test/test_any_utils.py
+++ b/test/test_any_utils.py
@@ -40,6 +40,26 @@ def test_key_addition_works(host):
     assert expected_stdout == output.stdout
 
 
+def test_key_addition_substr(host):
+    """Confirms addKey adds substring keys (no value) to a file"""
+    host.run(
+        """
+    source /opt/pihole/utils.sh
+    addKey "./testoutput" "KEY_ONE"
+    addKey "./testoutput" "KEY_O"
+    addKey "./testoutput" "KEY_TWO"
+    addKey "./testoutput" "Y_TWO"
+    """
+    )
+    output = host.run(
+        """
+    cat ./testoutput
+    """
+    )
+    expected_stdout = "KEY_ONE\nKEY_O\nKEY_TWO\nY_TWO\n"
+    assert expected_stdout == output.stdout
+
+
 def test_key_removal_works(host):
     """Confirms removeKey removes a key or key/value pair"""
     host.run(
@@ -62,6 +82,22 @@ def test_key_removal_works(host):
     assert expected_stdout == output.stdout
 
 
+def test_get_value_works(host):
+    """Confirms getVal returns the correct value for a given key"""
+    output = host.run(
+        """
+    source /opt/pihole/utils.sh
+    echo "Somekey=xxx" >> /tmp/testfile
+    echo "#Testkey=1234" >> /tmp/testfile
+    echo "Testkey=5678" >> /tmp/testfile
+    echo "Testkey=abcd" >> /tmp/testfile
+    getVal "/tmp/testfile" "Testkey"
+    """
+    )
+    expected_stdout = "5678"
+    assert expected_stdout == output.stdout
+
+
 def test_getFTLAPIPort_default(host):
     """Confirms getFTLAPIPort returns the default API port"""
     output = host.run(
diff --git a/test/tox.centos_8.ini b/test/tox.centos_8.ini
index dac10e97..dca77c93 100644
--- a/test/tox.centos_8.ini
+++ b/test/tox.centos_8.ini
@@ -4,5 +4,5 @@ envlist = py3
 [testenv:py3]
 allowlist_externals = docker
 deps = -rrequirements.txt
-commands =  docker build -f _centos_8.Dockerfile -t pytest_pihole:test_container ../
+commands =  docker buildx build --load --progress plain -f _centos_8.Dockerfile -t pytest_pihole:test_container ../
             pytest {posargs:-vv -n auto} ./test_any_automated_install.py ./test_any_utils.py ./test_centos_fedora_common_support.py ./test_centos_common_support.py
diff --git a/test/tox.centos_9.ini b/test/tox.centos_9.ini
index aa7009e1..a69c336a 100644
--- a/test/tox.centos_9.ini
+++ b/test/tox.centos_9.ini
@@ -4,5 +4,5 @@ envlist = py3
 [testenv:py3]
 allowlist_externals = docker
 deps = -rrequirements.txt
-commands = docker build -f _centos_9.Dockerfile -t pytest_pihole:test_container ../
+commands = docker buildx build --load --progress plain -f _centos_9.Dockerfile -t pytest_pihole:test_container ../
            pytest {posargs:-vv -n auto} ./test_any_automated_install.py ./test_any_utils.py ./test_centos_fedora_common_support.py ./test_centos_common_support.py
diff --git a/test/tox.debian_10.ini b/test/tox.debian_10.ini
index a012bda4..f107300f 100644
--- a/test/tox.debian_10.ini
+++ b/test/tox.debian_10.ini
@@ -4,5 +4,5 @@ envlist = py3
 [testenv:py3]
 allowlist_externals = docker
 deps = -rrequirements.txt
-commands = docker build -f _debian_10.Dockerfile -t pytest_pihole:test_container ../
+commands = docker buildx build --load --progress plain -f _debian_10.Dockerfile -t pytest_pihole:test_container ../
            pytest {posargs:-vv -n auto} ./test_any_automated_install.py ./test_any_utils.py
diff --git a/test/tox.debian_11.ini b/test/tox.debian_11.ini
index 48dc9df1..c38a15fb 100644
--- a/test/tox.debian_11.ini
+++ b/test/tox.debian_11.ini
@@ -4,5 +4,5 @@ envlist = py3
 [testenv:py3]
 allowlist_externals = docker
 deps = -rrequirements.txt
-commands = docker build -f _debian_11.Dockerfile -t pytest_pihole:test_container ../
+commands = docker buildx build --load --progress plain -f _debian_11.Dockerfile -t pytest_pihole:test_container ../
            pytest {posargs:-vv -n auto} ./test_any_automated_install.py ./test_any_utils.py
diff --git a/test/tox.fedora_36.ini b/test/tox.fedora_36.ini
index 0cc6f29c..515487ed 100644
--- a/test/tox.fedora_36.ini
+++ b/test/tox.fedora_36.ini
@@ -4,5 +4,5 @@ envlist = py3
 [testenv:py3]
 allowlist_externals = docker
 deps = -rrequirements.txt
-commands = docker build -f _fedora_36.Dockerfile -t pytest_pihole:test_container ../
+commands = docker buildx build --load --progress plain -f _fedora_36.Dockerfile -t pytest_pihole:test_container ../
            pytest {posargs:-vv -n auto} ./test_any_automated_install.py ./test_any_utils.py ./test_centos_fedora_common_support.py ./test_fedora_support.py
diff --git a/test/tox.fedora_37.ini b/test/tox.fedora_37.ini
index d6f44533..2a8ef398 100644
--- a/test/tox.fedora_37.ini
+++ b/test/tox.fedora_37.ini
@@ -4,5 +4,5 @@ envlist = py3
 [testenv]
 allowlist_externals = docker
 deps = -rrequirements.txt
-commands = docker build -f _fedora_37.Dockerfile -t pytest_pihole:test_container ../
+commands = docker buildx build --load --progress plain -f _fedora_37.Dockerfile -t pytest_pihole:test_container ../
            pytest {posargs:-vv -n auto} ./test_any_automated_install.py ./test_any_utils.py ./test_centos_fedora_common_support.py ./test_fedora_support.py
diff --git a/test/tox.ubuntu_20.ini b/test/tox.ubuntu_20.ini
index 88ee0b54..49a6153e 100644
--- a/test/tox.ubuntu_20.ini
+++ b/test/tox.ubuntu_20.ini
@@ -4,5 +4,5 @@ envlist = py3
 [testenv:py3]
 allowlist_externals = docker
 deps = -rrequirements.txt
-commands = docker build -f _ubuntu_20.Dockerfile -t pytest_pihole:test_container ../
+commands = docker buildx build --load --progress plain -f _ubuntu_20.Dockerfile -t pytest_pihole:test_container ../
            pytest {posargs:-vv -n auto} ./test_any_automated_install.py ./test_any_utils.py
diff --git a/test/tox.ubuntu_22.ini b/test/tox.ubuntu_22.ini
index cb5527ab..8014d6d6 100644
--- a/test/tox.ubuntu_22.ini
+++ b/test/tox.ubuntu_22.ini
@@ -4,5 +4,5 @@ envlist = py3
 [testenv:py3]
 allowlist_externals = docker
 deps = -rrequirements.txt
-commands = docker build -f _ubuntu_22.Dockerfile -t pytest_pihole:test_container ../
+commands = docker buildx build --load --progress plain -f _ubuntu_22.Dockerfile -t pytest_pihole:test_container ../
            pytest {posargs:-vv -n auto} ./test_any_automated_install.py ./test_any_utils.py