Firefox 24 ESR should be officially released today which means Firefox 17 ESR users will be automatically upgraded to Firefox 24 ESR. I want to take this opportunity to remind everyone of a major change that happened in Firefox 21 that will impact everyone upgrading to Firefox 24 ESR.
The location of a number of important files that are used to customize Firefox has changed. Here’s the list:
- defaults/preferences -> browser/defaults/preferences
- defaults/profile -> browser/defaults/profile
- extensions -> browser/extensions
- searchplugins -> browser/searchplugins
- plugins -> browser/plugins
- override.ini -> browser/override.ini
If you find that anything you’ve customized is not working anymore, these changes are probably the reason.