Not working on my non-English language system Rated 2 out of 5 stars
This addon has a problem:
On non-English setups, some database file or so gets corrupted after a while.
Result: Web sites you gave temporary permission to set cookies will still have that permission even after restarting your browser. That kind of defeats the purpose of this add-on, no?
You could just as well give them permanent permission to set cookies in the first place. The effect is the same as having temporary permission forever across restarts and reboots.
The developer has known about this bug for a year or so. Unfortunately, he hasn't had the time yet to fix this. I'm not sure this add-on is still under active development.
The only workaround for now is to flush all your permissions on exiting Firefox. But that also deletes the permanent ones you wanted to keep. These you'll have to reallow every time you visit the sites, again. And in the long run, this get very tiring. Zero comfort.
I dearly hope this gets fixed eventually. I don't expect it to though. Too bad. I liked this add-on a lot when it worked.