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xpcom.dll don't load

Posted

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!

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!

Additional System Details

Application

  • User Agent: Mozilla/5.0 (Windows NT 6.1) AppleWebKit/537.11 (KHTML, like Gecko) Chrome/23.0.1271.97 Safari/537.11

More Information

philipp
  • Top 10 Contributor
  • Moderator
3158 solutions 14622 answers

hello, can you try to do a clean uninstall as it's described in Desinstalando o Firefox (you don't have to delete your configuration though)

afterwards restart your pc, download a fresh copy of firefox from getfirefox.com and install that...

hello, can you try to do a clean uninstall as it's described in [https://support.mozilla.org/pt-BR/kb/Desinstalando%20o%20Firefox Desinstalando o Firefox] (you don't have to delete your configuration though) afterwards restart your pc, download a fresh copy of firefox from getfirefox.com and install that...

Question owner

I make all but the firefox don't start, only the message: "Couldn't load XPCOM"

Thank you!

I make all but the firefox don't start, only the message: "Couldn't load XPCOM" Thank you!
philipp
  • Top 10 Contributor
  • Moderator
3158 solutions 14622 answers

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?

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 [http://www.sandboxie.com/phpbb/viewtopic.php?t=14258 suggests] that it might be related to the sandboxie software - do you use that & run firefox in a sandbox?
Noah_SUMO
  • Moderator
63 solutions 400 answers

What OS are you using on your computer? Windows XP, Vista, Win 7, Win 8, Mac or Linux?

What OS are you using on your computer? Windows XP, Vista, Win 7, Win 8, Mac or Linux?
cor-el
  • Top 10 Contributor
  • Moderator
12900 solutions 118327 answers

(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.

  • (32 bit Windows) C:\Program Files\Mozilla Firefox\
  • (64 bit Windows) C:\Program Files (x86)\Mozilla Firefox\
''(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. *(32 bit Windows) C:\Program Files\Mozilla Firefox\ *(64 bit Windows) C:\Program Files (x86)\Mozilla Firefox\

Modified by cor-el

Question owner

Thanks for help!

I use win 7 32 bits

Thanks for help! I use win 7 32 bits

Modified by escriba

David A. 0 solutions 1 answers

Is there any simple fast way to correct this "Couldn't load XPCOM" error when I start Firefox?

Thx, David A.

Is there any simple fast way to correct this "Couldn't load XPCOM" error when I start Firefox? Thx, David A. <!-- socaldave@ymail.com -->

Modified by Noah_SUMO