If the keeper of your favorite plugin can’t keep up with Mozilla’s zany release schedule, worry no more. Disable Add-on Compatibility Checks does exactly what it sounds like it’ll do. Install it (no restart needed) and head to your Add-ons Manager where you’ll be able to enable previously dead-to-you add-ons. I’ve periodically posted links to several repacked add-ons in the past, but this plugin means I’ll never again have to edit an install.rdf file.
Sometimes Plugins Die, Little Johnny
Occasionally a plugin really and truly can’t be resurrected by this method. Case in point, today’s update to Thunderbird 17.0 killed the Quicktext add-on for good. Sad times. I loved that plugin too! RIP little buddy.
Big kudos to Kris Maglione for making one add-on to rule them all. Thanks!