Prevent certain add-ins from being deactivated.
I have a certain add-in installed that Firefox sometimes says is "slowing things down" and recommends deactivating. Thing is, it's my password manager, so I absolutely never want to deactivate it, and am quite okay if it occasionally slows things down, and would like to tell Firefox to never suggest turning off this particular add-in, while still leaving that feature on for other add-ins I might care less about. Is there anyway off adding it to an "ignore it if this add-in slows things down a bit" list?
No, you can only increase the dom.max_ext_content_script_run_time preference.
As to the above: Type about:config<enter> in the address bar. If a warning screen comes up, press the I Accept the Risk button. At the top of the screen is a search bar.
Issue with that is it is universal. Thanks for your responses, but overall I think I'd prefer leaving the dom.max_ext_content_script_run_time as it is so other add-ins that I care less about will still be picked up and I can deactivate if they're causing issues.
I'll just put up with it for now. Thanks again for your replies.