I just tried it in a fresh install and it is working (other positive reviews confirm it's working for others too). Perhaps other browser settings or adblock are preventing the extension from executing. Please get in touch if you see an error that can be debugged.

The right click menu and middle mouse button are unchanged so that it retains its default behavior in case you need it some time.

hi, thanks for letting me know! The options page has changed in the new Firefox extensions standard so it disappeared from the drop-down.

I have just updated the extension, you can find the settings again with right-click > Manage Extension > Options.

Please let me know it this works for you now.

BR