Firefox Troubleshooti

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Troubleshoot Mozilla Firefox Crashes

• Firefox can crash for a variety of reasons, but you can quickly fix most crashes with Firefox’s Safe Mode and Reset features. However, even these tricks won’t fix every crash.

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• Web browsers are complicated pieces of software that interact with lots of other software on your system

• extensions and themes, • plug-ins, • security programs, • graphics drivers etc.

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Use Safe Mode• Firefox has a Safe Mode that loads Firefox

without loading your add-ons.• To activate Safe Mode, click the Firefox

menu, point to Help, and select Restart with Add-ons Disabled.

• You can also enter Safe Mode by holding the Shift key while starting Firefox.

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• Try using Safe Mode for a while if Firefox is crashing.

• If Safe Mode works properly, the problem is with one of your add-ons.

• You may want to leave Safe Mode and disable add-ons one-by-one until you identify the add-on causing the problem.

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Call 1-855-416-8886

Reset Firefox• Firefox stores your personal data in a

profile folder. Problems can occur with your profile folder, but you do not have to waste time identifying and fixing the exact cause.

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• Firefox’s Reset feature will create a new profile folder, migrating over your bookmarks, browser history, saved passwords, cookies, and auto-fill information.

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• You will lose your extensions, themes, search engines, and site-specific preferences when you reset Firefox. Extensions and themes in particular can cause crashes, so getting rid of them and starting from a clean profile can be helpful.

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Firefox Troubleshooti

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• To reset Firefox to its default state, open the Firefox menu, point to Help, and select Troubleshooting Information.

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Call 1-855-416-8886

Call 1-855-416-8886

• Click the Reset Firefox button. Firefox will create a new profile for you and migrate most of your old information over. The new, clean profile should hopefully fix your crashes.

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Call 1-855-416-8886

• If Firefox starts crashing again after you reinstall your favorite extensions, one of your extensions is likely causing the crashes.

• Try reinstalling extensions one-by-one to identify if a particular extension is causing problems.

• Firefox stores your personal data in a profile folder. Problems can occur with your profile folder, but you do not have to waste time identifying and fixing the exact cause.

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Disable Hardware Acceleration

• Firefox’s hardware acceleration feature uses your computer’s graphics card to render text and objects on web pages.

• This speeds up web page rendering and takes some load off your CPU.

• However, hardware acceleration can cause problems with some graphics drivers and graphics cards.

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Disable Hardware Acceleration

• You can determine whether hardware acceleration is the problem by disabling it.

• To do so, click the Firefox button and select Options.

• Click the Advanced icon and uncheck the Use hardware acceleration when available checkbox.

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Call 1-855-416-8886

Call 1-855-416-8886

• Try using Firefox for a while after disabling this feature. If Firefox stops crashing, hardware acceleration was likely the problem.

• You can try installing updated graphics drivers and see if they fix the problem.

• If they don’t, you should leave hardware acceleration disabled on your system.

Firefox Troubleshooti

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Check for Malware• Malware can cause Firefox to crash, just

as it can cause other programs to crash on your system.

• If Firefox is regularly crashing, scan your computer with an antivirus program like Microsoft Security Essentials.

• If you already have an antivirus program installed, you may want to get a second opinion from another antivirus program.

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Call 1-855-416-8886

Update Software

• Mozilla recommends updating the software on your system if Firefox is crashing. Here is a list of everything you should update:

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• Firefox: Click the Firefox menu, point to Help, and select About Firefox. Download and install any available updates.

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• Plug-ins: Visit the Firefox plug-in update check page. The page will scan your browser for outdated plugins. Follow the links to download and install updates for any outdated plugins.

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• Extensions and Themes: Click the Firefox button, click Add-ons, and select Extensions. Click the gear menu and select Check for Updates. Install any updated add-ons.

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• Windows: Use Windows Update to ensure Windows is up-to-date.

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• Graphics Drivers: Install updated graphics drivers to fix problems with hardware acceleration.

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• Internet Security Software: Install the latest versions of any firewalls, antivirus programs, Internet security suites, and other security applications installed on your system.

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Call 1-855-416-8886

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