Add support for exclude_matches in firefox
Add support for exclude_matches in firefox

i3ongmeester/SteamDatabase,i3ongmeester/SteamDatabase,SteamDatabase/SteamDatabase,i3ongmeester/SteamDatabase,SteamDatabase/SteamDatabase,SteamDatabase/SteamDatabase,GoeGaming/SteamDatabase,GoeGaming/SteamDatabase,GoeGaming/SteamDatabase