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XUL runner Error platform version 126 is not compatible with minVersion 125.03 is slowing down the PC

Peta Odonovan
Peta Odonovan

My PC is running very slowly On logging out which takes a very long time I get a message: XUL runner Error: Platform version 126 is not compatible with miniVersion 125.03

I cannot find GoogleGoogle Play on my PC and do not use it so I can't delete and re install

My PC is running very slowly On logging out which takes a very long time I get a message: XUL runner Error: Platform version 126 is not compatible with miniVersion 125.03 I cannot find GoogleGoogle Play on my PC and do not use it so I can't delete and re install

All Replies (1)

Kiki [Off - Back June 11th]
Kiki [Off - Back June 11th]
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Hi petaodonovan,

This is a known issue caused by a corrupted installation after a failed update. The workaround is to uninstall and then re-install Firefox to fix this issue while our team is working on a more permanent fix. You don't need Google Play on PC and you shouldn't lose any data if you download the full installer from our official source.

So sorry for taking a long time to get back here with an actual resolution.