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Firefox crashes

  • 3 个回答
  • 2 人有此问题
  • 8 次查看
  • 最后回复者为 firetom

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Firefox 25 crashes on startup. The only fix I've found is to uninstall Firefox and re-install

Firefox 25 crashes on startup. The only fix I've found is to uninstall Firefox and re-install

所有回复 (3)

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hello, you have a few malicious addons present. please try these steps:

  1. reset firefox (this wil keep your bookmarks and passwords)
  2. afterwards go to firefox > addons > extensions and in case there are still extensions listed there, disable them.
  3. finally run a full scan of your system with different security tools like the free version of malwarebytes and adwcleaner to make sure that adware isn't present in other places of your system as well.

Troubleshoot Firefox issues caused by malware

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Note that your System Details List shows that you have a user.js file in the profile folder to initialize some prefs on each start of Firefox.

The user.js file is only present if you or other software has created it, so normally it wouldn't be there. you can check its content with a plain text editor if you didn't create this file yourself.

The user.js file is read each time you start Firefox and initializes preferences to the value specified in this file, so preferences set via user.js can only be changed temporarily for the current session.


You can use one of these to start Firefox in Safe Mode:

  • On Windows, hold down the Shift key while starting Firefox with a double-click on the Firefox desktop shortcut
  • On Mac, hold down the Options key while starting Firefox
  • Help > Restart with Add-ons Disabled

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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Hello, I've tried to reset Firefox. As soon as press "reset" Firefox crashes. I've disabled all extensions. I've run Malwarebytes and it found many objects; all deleted. Same result though. Crash on startup.