I have a problem whit the xpcom.dll, when the firefox report "can't load xpcom.dll"! But the xpcom.dll is in the firefox folder, and in the system32 folder and in the system too.
I download a new xpcom.dll but the firefox do not start! I deleted the folder of firefox but nothing happened! I reinstall the firefox but the problem persist!
PS: My english is not good.....I speak portuguese.....sorry!
hello, the same issue was mentioned here: https://support.mozilla.org/questions/943596 & in this case it was apparently present when firefox was set to autorun on startup of windows.
a general websearch also suggests that it might be related to the sandboxie software - do you use that & run firefox in a sandbox?
(the OP posted with a Google Chrome user agent on Windows 7 (NT 6.1))
Quote: But the xpcom.dll is in the firefox folder, and in the system32 folder and in the system too.
If you have an xpcom.dll file in the system folder and in the system32 folder then you need to remove the file in those locations.
Firefox files should only be in the Firefox program folder.