IF you get the error “You’ve launched and older version of Firefox”.
Latest Firefox Version
DON’T create a new profile:
Sometimes, the latest version of an app may cause problems or not even work. While the developer is fixing the problem, try using an older version. If you need the previous version of Firefox, check out the app's version history which includes all versions available to download. Download prior versions of Firefox for Mac. Other known causes of memory problems were malfunctioning extensions such as Google Toolbar and some older versions of AdBlock, or plug-ins, such as older versions of Adobe Acrobat Reader. When PC Magazine in 2006 compared memory usage of Firefox 2, Opera 9, and Internet Explorer 7, they found that Firefox used approximately as much memory as.
If you create a new profile will not have your bookmarks, lose your cookies and site specific settings and any extensions you had installed and enabled.
You can amend the target in the shortcut – add:
-allow-downgrade
After:
This will allow Firefox to start without having to create a new profile.
Older Versions Of Firefox For Mac 10.8.5
Then launch the application and then check for upgrade – it should update.
After the update, remove the “-allow-downgrade“ info in the target and Firefox should be able to work properly. Pitman cranes manual.