"XULRunner This profile was last used with a newer version of this application. Please create a new profile."
I am getting the popup after I downloaded 115.7 ESR and transferred a profile that was also on the same version. In compatability.ini it says LastVersion=115.7.0.
Solution choisie
Was the other profile also running in 64-bit Firefox 115.7.0esr in the same language? If there were any differences in the build, you could get that message.
If you are confident that it wasn't a later version, you can start Firefox with the "allow downgrade" option described toward the end of the following article: Dedicated profiles per Firefox installation.
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Solution choisie
Was the other profile also running in 64-bit Firefox 115.7.0esr in the same language? If there were any differences in the build, you could get that message.
If you are confident that it wasn't a later version, you can start Firefox with the "allow downgrade" option described toward the end of the following article: Dedicated profiles per Firefox installation.