Review for GuifiProxy by Nemo
Rated 5 out of 5 stars
Up&down buttons work perfectly.
Switching on-off and changing proxies still need restarting firefox. And it's worse than 3.0.3. On 3.0.3 I could manage to fix it by disabling some addons but this time it seems unfixable.
On 3.0.3 clicking proxy status opens the option window which is very practical. But now it doesn't. You have to do it on add-ons manager panel. It's better on previous version.
To create your own collections, you must have a Mozilla Add-ons account.