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Trying to open Firefox browser but I keep getting the message "couldn't load XPCOM."

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  • Last reply by cor-el

icsober2005
icsober2005
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Trying to open Firefox browser but I keep getting the message "couldn't load XPCOM."

Trying to open Firefox browser but I keep getting the message "couldn't load XPCOM."

All Replies (2)

Dropa
Dropa
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What site and screenshot of the issue?

cor-el
cor-el
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  • Top 10 Contributor
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An error message about XPCOM missing or about platform version usually happens because of a failed Firefox update that left you with a mixture of old and updated files in the Firefox program 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 need to do a clean reinstall and remove the Firefox program folder to ensure that all files are replaced. You may have to disable security software temporarily in case the problem persists.

You can find the full installer of the current Firefox release (108.0.2) in all languages and all operating systems here: