Firefox starts with a "could not load xpcom.dll" error.
When I open Firefox, I sometimes get the error message as per subject. It only happens 1 out of 10 times. When I acknowledge this error message and open Firefox again, it works with no errors seen. Now, I've seen this issue posted many times on these forums but none solve the issue or have an acceptable answer.
- I do not have Firefox in my startup folder. - I cannot do a clean uninstall as I have a plethora of add-ons, extensions and settings.
What causes this error and how can I fix it permanently?
Thanks for reading.
Tutte le risposte (5)
Which security software (firewall, anti-virus) do you have?
A possible cause is security software (firewall,anti-virus) that blocks or restricts Firefox or the plugin-container process without informing you, possibly after detecting changes (update) to the Firefox program.
Remove all rules for Firefox and the plugin-container from the permissions list in the firewall and let your firewall ask again for permission to get full unrestricted access to internet for Firefox and the plugin-container process and the updater process.
See:
As it only happens sometimes it might be that the file is being used by another process as suggested in https://support.mozilla.org/fr/questions/971567. If you are in windows you can use Process Explorer (http://technet.microsoft.com/en-us/sysinternals/bb896653.aspx) to know which process is using the file?
Modificato da Imen il
Note that the xpcom.dll file is no longer present in current Firefox versions, so you may have an extension or other software that needs to be updated for the current release.
- Bug 852950 - Kill xpcom.dll/libxpcom.so/xpcom.dylib
Start Firefox in Safe Mode to check if one of the extensions (Firefox/Tools > Add-ons > Extensions) or if hardware acceleration is causing the problem (switch to the DEFAULT theme: Firefox/Tools > Add-ons > Appearance).
- Do NOT click the Reset button on the Safe Mode start window.
Guys thank you for the helpful replies and apologies for my belated reply (I was on holiday!)
Seeing as Firefox does not use this driver anymore, could an extension be using this driver? How would I determine which one is using it? (I have around 10)
Thanks..
Ah I see, so there is an outdated extension that is using this driver?
I will update all extensions and report back..