How to Repair ‘Couldn’t load XPCOM’ on Mozilla Firefox

The “Mozilla Firefox cannot load XPCOM” error is one of the most common and frequent problems that many Windows users face. When this error occurs, Mozilla Firefox cannot be opened and the following error message appears on the screen.

Mozilla Firefox XPCOM can’t load problem can occur in a Windows-based system when users try to access the Mozilla Firefox web browser after a Windows OS update. Also, this annoying error can occur due to the corruption of the Mozilla Firefox profile folder. read more