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Windows 10 bereikte EO (einde ondersteuning) op 14 oktober 2025. Als je Windows 10 gebruikt, lees dan dit artikel.

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new version 131.0.2

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  • 5 hebben dit probleem
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  • Laatste antwoord van Dan MT
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TrueNorth
TrueNorth

I just installed the new Firefox version (131.0.2) and the installation gave me a new desktop lnk (the old one is still on the desktop). The new link (to an .exe file in "C:...\AppData\Local\Mozilla Firefox\browser") starts the new version of Firefox in its newborn virgin state, i.e., EVERYTHING from my previous version is missing.

The old link (which points to an identical .exe file in a completely different directory "C:\Program Files\Mozilla Firefox\browser" with same date stamp as the .exe file mentioned above) when executed results in an error message: Platform version '131.0' is not compatible with 

                                                                                              minVersion >= 131.0.2
                                                                                              maxVersion <= 131.0.2

NOTE: The files in each of these two directories appears to be identical. I really want my old profile back.

HELP!

I just installed the new Firefox version (131.0.2) and the installation gave me a new desktop lnk (the old one is still on the desktop). The new link (to an .exe file in "C:...\AppData\Local\Mozilla Firefox\browser") starts the new version of Firefox in its newborn virgin state, i.e., EVERYTHING from my previous version is missing. The old link (which points to an identical .exe file in a completely different directory "C:\Program Files\Mozilla Firefox\browser" with same date stamp as the .exe file mentioned above) when executed results in an error message: Platform version '131.0' is not compatible with minVersion >= 131.0.2 maxVersion <= 131.0.2 NOTE: The files in each of these two directories appears to be identical. I really want my old profile back. HELP!

Alle antwoorden (2)

TyDraniu
TyDraniu
  • Top 10 Contributor

OMG. You should keep old C:\Program Files\Mozilla Firefox\ . But it needs to be reinstalled.

The full offline setup for Windows should be downloaded from https://www.mozilla.org/firefox/all/#product-desktop-release, as downloading Firefox for Windows from mozilla.org may serve you the small online stub installer.

An error message like XPCOM missing or about platform version or entry points not found can happen because of a failed Firefox update that left you with a mixture of old and updated files in the Firefox installation folder.

This can happen in case security software was keeping a handle of some of the files in the Firefox program folder preventing Firefox from replacing all the files.

You may have to disable security software temporarily in case the problem persists.

Dan MT
Dan MT

These suggestions seem to be for the highly adept user. That ain't me. What I need is step by step. Dan MT