Sometimes, Firefox freeses up, or hangs, or it closes out, among many other issues. Many things can cause this. Try the following found on the Mozilla website to fix these issues:

1. Restart your computer

Sometimes problems can be fixed by simply restarting your computer and then starting Firefox again. 2. Clear your cookies and cache

Many problems with loading web pages can be resolved by clearing Firefox's cookies and cache:

Click the menu button New Fx Menu , choose History and select Clear Recent History.... In the Time Range to clear: drop-down, select Everything. Click the arrow next to Details to display the list of items that can be cleared. Select both Cookies and Cache. Click Clear Now.

For more information, see Delete browsing, search and download history on Firefox.

3. Restart Firefox in Safe Mode

Firefox Safe Mode is a troubleshooting mode that disables all extensions, uses the default theme, turns off hardware acceleration, and uses default toolbar settings and controls, among other things. To start Firefox in Safe Mode:

Click the menu button New Fx Menu , click help Help-29 and select Restart with Add-ons Disabled.... Firefox will start up with the Firefox Safe Mode dialog. Note: You can also start Firefox in Safe Mode by quitting Firefox and then going to your Terminal and running: firefox -safe-mode You may need to specify the Firefox installation path (e.g. /usr/lib/firefox) In the Firefox Safe Mode dialog, click Start in Safe Mode. Check whether your problem is still happening while in Safe Mode.

If the problem still happens in Safe Mode, go on to step 4. If the problem does not happen in Safe Mode, see the Troubleshoot extensions, themes and hardware acceleration issues to solve common Firefox problems article and follow the instructions under The problem does not occur in Safe Mode to narrow down the cause.

4. Troubleshoot your plugins

Sometimes plugins used in Firefox (such as Adobe Reader, Flash, Java, Silverlight and QuickTime) can cause problems that may be fixed in the latest version. To check to see if you have the latest plugin versions, go to our Plugin Check page. If any of your plugins are outdated, click Update and follow the instructions for updating that plugin. After you've updated all of your plugins, restart Firefox:

Click the menu button New Fx Menu and then click Exit Close 29 . then start Firefox again. If the problem still happens, you can disable all of your plugins to see if one of them is the cause:

Click the menu button New Fx Menu and choose Add-ons. The Add-ons Manager tab will open. In the Add-ons Manager tab, select the Plugins panel. Click each plugin in the list and then select Never Activate in its drop-down menu. Check whether your problem happens when you have all plugins disabled.

If your problem goes away when your plugins are disabled, see the Troubleshoot issues with plugins like Flash or Java to fix common Firefox problems article to learn how to narrow down the cause. 5. Reinstall Firefox

Some Firefox issues can be caused by a problem with one of the Firefox program files. Follow these steps to completely remove and reinstall Firefox. This process will not remove your Firefox profile data (such as bookmarks and passwords), since that information is stored in a different location. Note: You might want to print these steps or view them in another browser.

Download the latest official version of Firefox from mozilla.org. Quit Firefox:

Click the menu button New Fx Menu and then click Exit Close 29 . Uninstall Firefox - If you installed Firefox with the distro-based package manager, you should use the same way to uninstall it - see Install Firefox on Linux for details. If you downloaded and installed the binary package from the Firefox download page, simply remove the folder firefox in your home directory to uninstall Firefox. Reinstall Firefox - see Install Firefox on Linux for instructions.

Now start Firefox and check to see if your problem has been fixed.If it hasn't, continue with the next troubleshooting method. 6. Refresh Firefox

The Refresh Firefox feature can fix many issues by restoring your Firefox profile to its default state while saving your essential information. Note: When using the refresh feature, your bookmarks, browsing history, open tabs, windows, passwords, cookies and web form auto-fill information will be saved. However, your extensions and themes will be removed and your preferences will be reset. Learn more.

Click this Refresh Firefox button directly, if you are viewing this page in Firefox (it won't work if you are using a different browser or on a mobile device). You will also find a Refresh button on the top right corner of the Firefox about:support Troubleshooting Information page. To continue, click Refresh Firefox in the confirmation window that opens. Firefox will close to refresh itself. When finished, a window will list your imported information. Click Finish and Firefox will open.

Note: There's also a Refresh Firefox button in the Firefox Safe Mode window, if you can't start Firefox normally.

7. Create a new Firefox profile

Sometimes files in your Firefox profile folder that correspond to the essential information that a Firefox Refresh doesn't remove (such as bookmarks and browsing history) may be causing the issue. You can create a new, additional profile which will not contain any of your old Firefox data. See Use the Profile Manager to create and remove Firefox profiles for instructions. Other solutions

If you've tried all of these troubleshooting methods and you're still having problems the issue may be with hardware. This section does not contain step-by-step instructions. For more information on any of these solutions, please check the related documentation. Check your hard drive and RAM for errors

A problem with your computer's hard drive or RAM may prevent Firefox from running or make it crash repeatedly. Here are instructions or tools for checking:

your hard drive: Testing a drive with Smartmontools on ubuntu.com

your RAM: Memtest86+

The following link explains what I am posting to explain, herein. You can find this info, there, as well as in this reply. http://mzl.la/1kLCBgO

If you have submitted crash reports then please post the IDs of one or more recent crash reports that start with "bp-".

• bp-xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx

You can find the report ID of recent crash reports on the "Help > Troubleshooting Information" page (about:support).

• click the "All Crash Reports" button on this page to open the about:crashes page and see all crash reports.

Alternatively you can open about:crashes via the location/address bar.

See also:

• http://kb.mozillazine.org/Mozilla_Crash_Reporter
• https://support.mozilla.org/kb/Mozilla+Crash+Reporter

Yes, you can also do that of doing a crash report. Cor-el is correct in his info, too.

cor-el, I don't GET a crash report to submit. That is my problem. All I get is "Firefox has stopped working" and Windows looks for a solution. I don't get a crash report or any info from the program itself.