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the error message indicates that the platform version 125.0.1 is not compatible with Firefox version 129.0.
I have done reinstalled Firefox i also tried to download version 129.0 but neither solved my problem pls help me as soon as possible pls i am having a delay on working in my project I have tried all my best pls help
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Did you reinstall with a full installer (above 50 MBs of size)?
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 need to reinstall Firefox and possibly 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.
Reinstall Firefox: