Browggers (browser + POGGERS) is a stupid browser extension which substitutes every image in every page with an image of the POGGERS Twitch emote.
You can find Browggers in the Firefox add-on store or download a release and install it manually. It is compatible with most browsers (tested on Firefox and Chromium).
You can test the extension using the run_debug.sh script.
You'll need web-ext and Make. Run:
makeDone. Your archive is in the build directory.