Fix–“You’ve launched and older version of Firefox” error

IF you get the error “You’ve launched and older version of Firefox”..


DON’T create a new profile:

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:





This will allow Firefox to start without having to create a new profile.

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.

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