Rated 5 out of 5 stars

(I have updated my review after it took a few months to fix the recent add-on breaking bug.) This add-on is very useful to use with Flash, specifically I use it with YouTube. It is great to be able to ctrl-tab or ctrl-w without any issues! The developer suggested using HTML5, but currently the Flash player offers more resolutions because Firefox doesn't fully support MSE.

The add-on is already simple and straightforward, but I think making this restartless would be a good improvement.

This review is for a previous version of the add-on (0.7.1-signed). 

If I make the addon restartless, then it will not work for already loaded pages with flash. I don't want to reload every page after restartless installation.
P.S.: Sorry, I was busy, and with my Firefox ESR 31 old version of addon still works fine.
P.P.S: You don't need my addon if you use Youtube. Just select html5 player here: https://www.youtube.com/html5 .