Not working as of 68.0.2. Also, there is no explanation anywhere of how to actually use the plugin. The gestures are only listed as strings of letters (such as “D-L-U”) representing cardinal directions (which is not explained, you need to have used similar plug-ins which do explain it) but no explanation of where or how to execute these gestures.
Any add-on of Firefox does not work on some special pages. (e.g. "about:...", "https://support.mozilla.org" and "https://addons.mozilla.org") I added this to "About this extension". I am sorry for taking up your time.
