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after i start firefox several files won t open they contain .dll suffix

  • 6 replies
  • 1 has this problem
  • 4 views
  • Last reply by cor-el

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i just click them closed and then firefox starts 9 of them can i resolve this newer versions don t resolve this thx

i just click them closed and then firefox starts 9 of them can i resolve this newer versions don t resolve this thx

All Replies (6)

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hello, could you provide the exact wording of the error message or filenames?

also run a full scan of your system with the security software that you have in place and different other tools like the free version of malwarebytes & adwcleaner.

Remove a toolbar that has taken over your Firefox search or home page Troubleshoot Firefox issues caused by malware

Modified by philipp

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Maybe related to this extension that shows in the System Details List: startup.service 0.2

Start Firefox in Safe Mode to check if one of the extensions (Firefox/Firefox/Tools > Add-ons > Extensions) or if hardware acceleration is causing the problem (switch to the DEFAULT theme: Firefox/Firefox/Tools > Add-ons > Appearance).

  • Do NOT click the Reset button on the Safe Mode start window.
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here are files mozsqlite3.dll nspr4.dll smime3.dll nssutil3.dll pic4.dll plds4.dll ssl3.dll xpcom.dll

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here are files mozsqlite3.dll nspr4.dll smime3.dll nssutil3.dll pic4.dll plds4.dll ssl3.dll xpcom.dll

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safe mode and default changes had no effect same files not opening

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Do a clean reinstall and delete the Firefox program folder before (re)installing a fresh copy of the current Firefox release.

Download a fresh Firefox copy and save the file to the desktop.

Uninstall your current Firefox version, if possible, to cleanup the Windows registry and settings in security software.

  • Do NOT remove personal data when you uninstall your current Firefox version, because all profile folders will be removed and you lose personal data like bookmarks and passwords from profiles of other Firefox versions.

Remove the Firefox program folder before installing that newly downloaded copy of the Firefox installer.

  • (32 bit Windows) "C:\Program Files\Mozilla Firefox\"
  • (64 bit Windows) "C:\Program Files (x86)\Mozilla Firefox\"

Your bookmarks and other personal data are stored in the Firefox profile folder and won't be affected by an uninstall and (re)install, but make sure that "remove personal data" is NOT selected when you uninstall Firefox.