Downloads Firefox Extension and Extracts into Firefox Extensions Folder. For the extension to become enabled, it is required for firefox to be restarted twice. After running Firefox for the first time, Firefox will scan for extensions in the extensions folder. After second time the Firefox is ran, Firefox will enable the extension. To automate t…

Download_and_extract_Firefox_Extension.bash

#!/bin/bash

if [ "$USER" != "root" ]; then exec sudo bash "$0" "$@"; fi


# Download Latest "Gnome-Shell Integration Extension" for Firefox Browser.
#_________________________________________________________________________

wget "https://addons.mozilla.org/firefox/downloads/latest/gnome-shell-integration/addon-898030-latest.xpi" \
--output-document="gnome_shell_integration-an+fx-linuz.xpi" \
-q --show-progress \

# Open Downloaded "Gnome-Shell Integration Extension" XPI file
#_________________________________________________________________________
## XPI files are .zip archives, we use "unzip" command to open it.
## -p     extract  files  to  pipe (stdout). 

## And, we will output/extract manifest.json file content into a variable.
manifest_json_file=$(unzip -p "gnome_shell_integration-an+fx-linuz.xpi" "manifest.json")


# We will parse manifest file for ID value
extensionId=$(echo $manifest_json_file | grep -Po '"id": *\K"[^"]*"')

# Remove Quotes from the Json ID value
extensionId=$( echo $extensionId | tr -d '"')

# Rename the extension to its ID from manifest.json file
mv "gnome_shell_integration-an+fx-linuz.xpi" "$extensionId.xpi"
mv "$extensionId.xpi" "/lib/firefox/browser/extensions/"