For me, this works, among other things. Script in the current version of Firefox and in Nightly
It does not appear on my toolbar. I translated it into English. I'm concerned that it may have been altered. Will it work for me in German?
And here's the script for anyone who wants to try and test it.
How do I test it? By installing an older version of one of the addons? How long should we expect it to inform of an update?
EDIT: I just tested it. I installed an older version of an addon. I changed to another tab, away from about:addons, and relaunched Firefox. The browser went directly to about:addons to the "Available Updates" page to update the addon. Great! Thank you! ![]()
The button on the toolbar is blank.





