How to Solve “Firefox Couldn't Load XPCOM”

2020年3月1日 — 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 ...

2022年1月19日 — Sometimes, doing just an reinstall is not enough. Let's do a full clean re-install;. Note: Firefox comes in three or more folders on all ...

2018年8月12日 — An error message about XPCOM missing or about platform version usually happens because of a failed Firefox update that left you with a mixture ...

An error message about XPCOM or about platform version usually happens because of a failed Firefox update that left you with a mixture of old and updated files ...

2023年10月4日 — Corrupted Firefox installation – A corrupt installation can prevent the XPCOM component from loading, causing this error. · Conflicts with other ...

2023年7月7日 — Solution 1: Run Your Firefox As Administrator · Solution 2: Start Firefox In Safe Mode and Disable Extensions · Solution 3: Reset Your Firefox.