Check for add-on compatibility before upgrading
When you update FF it checks which of your plugins are compatible with the new version. Is there any way to be able to check automatically BEFORE you upgrade? It's a nuisance to have to go to the Add-Ons Manager to get a list of all your add-ons, then search add-ons for each one, then click on the add-on from the search results, just to see whether it claims to be compatible with the new version, and it's an even bigger nuisance to upgrade only to find that an add-on you need isn't compatible and you have to revert to an older version.
Alla svar (2)
You can try this extension to override compatibility issues,
Once it is installed, open Addons Manager and re-enable the addons you need.
Addons Manager URL: about:addons
That just allows you to try to use an add-on AFTER upgrading, even if it hasn't been confirmed compatible. You still won't know which of your add-ons will work BEFORE upgrading without going through the tedious manual process.