We propose MJBlocker, a lightweight and run-time malicious JavaScript Extensions (JSEs) blocker for preventing them from hurting user security. MJBlocker can identify and block malicious JSEs whenever ...

XPCOM errors in Firefox occur when the browser can’t find or access some important files it needs to run. These errors can cause Firefox to crash or not work correctly. It usually appears right when ...

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Another point: Thunderbird never fully integrated the XPCOM interoperability layer mentioned above, which is now required with the integration of Rust Exchange.

Method 4: Using Firefox for the Tor Network. In some cases, this issue occurs with the Tor browser and doesn’t seem to go away using any workaround or fix.

When a user has an incompatible browser version and is using a global-setup flow, the popup "Couldn't Load XPCOM" appears" when tests are run in firefox. Important Notes Main and Develop Branches run ...

Similiarly, I am unable to load Firefox in order to Reset it because I just get the XPCOM message. Any ideas on how I can uninstall Firefox please? ALso from Windows 8.1. Many thanks.

Mozilla announced last week plans to modernize Thunderbird's codebase, plans that include fixing some "technical debt" by incorporating the recent changes in the Mozilla engine into Thunderbird ...