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This article will help you troubleshoot and fix Firefox crashes. It'll also show you how to get more help if you're having problems solving the issue.

A ''crash'' is what happens when Firefox closes or quits unexpectedly. After a crash, you should see the [[Mozilla Crash Reporter|Mozilla Crash Reporter]] appear. This article will help you fix crashes and show you how to get more help if you're having difficulties. '''First, if you have one of these specific issues, follow the link to get help.''' * If Firefox is open but won't respond to any of your actions, see [[Firefox hangs or is not responding - How to fix]]. * If Firefox crashes on startup, [[#w_check-to-see-if-the-crash-happens-in-safe-mode|check to see if the crash happens in safe mode]] (below). * See [[Firefox crashes when downloaded files are checked by virus scan]] if you have that specific problem. '''If none of these describe your issue, follow the steps below in order.''' __TOC__ = Update your software = ''The crash you're experiencing may have already been fixed in a new version!'' == Update Firefox == Every Firefox release includes a number of fixes for crashes that people have reported. Making sure you have the latest version may fix your crash. *{for win}To check for Firefox updates, go to the top of the Firefox window and click the {button Firefox} button. Then go over to the {menu Help} menu and select {menu About Firefox}. '''For Windows XP:''' Go to the {menu Help} menu and select {menu About Firefox}.{/for}{for mac}To check for Firefox updates, go to the menu bar, click the {menu Firefox} menu and select {menu About Firefox}.{/for}{for linux}To check for Firefox updates, go to the top of the Firefox window, click the {menu Help} menu and select {menu About Firefox}.{/for} See [[Update Firefox to the latest version]] for details. ==Update your plugins== Check that you have the latest versions of all your plugins. *Go to our [https://www.mozilla.org/plugincheck Plugin Check] page and follow the links to update any plugins that are out of date. {for win} ==Update Windows== Make sure you have all of the latest security and stability fixes. *Go to the {menu Start} menu, select {menu All Programs} and then {menu Windows Update}. {/for} {for mac} ==Update OS X== Make sure you have all of the latest security and stability fixes. *Go to the {menu Apple} menu and select {menu Software Update...} {/for} {for linux} ==Update Linux== Make sure you have all of the latest security and stability fixes. *Go to the {menu System} menu, down to {menu Administration} and select {menu Update Manager}. {/for} == Update your drivers == Check if your graphics drivers are up-to-date. For more info, see [[Upgrade your graphics drivers to use hardware acceleration and WebGL]].<br> If your crash happens while printing, check that your printer driver is up-to-date by going to your printer manufacturer's support website. == Update your Internet Security software == Make sure you have the latest version of your Internet security software (including firewalls, antivirus programs, anti-spyware programs, and more). {for win} = Check for viruses or spyware = A number of different viruses and spyware are known to crash Firefox. To ensure that your system is clean of spyware and viruses, install, update their virus databases, and use both of these programs: *[http://www.malwarebytes.org/products/malwarebytes_free Malwarebytes' Anti-Malware] *[http://www.superantispyware.com/portablescanner.html SuperAntispyware Portable Scanner] For more information, see [[Troubleshoot Firefox issues caused by malware]]. {/for} = Check to see if the crash happens in safe mode = If updating software didn't work or if Firefox crashes on startup, use the steps below to test whether the crash happens in Firefox Safe Mode or not and then follow the instructions in the recommended articles. {for fx13} {note}'''Note:''' [[Template:reset-fx]]{/note} {/for} # [[T:safemode]] # When the Firefox Safe Mode window appears, press the button {for not fx15}{button Continue in Safe Mode}{/for}{for fx15}{button Start in Safe Mode}{/for}. After Firefox starts in Safe Mode, test for your problem. == The crash still happens in Safe Mode == If your crash still happens in Safe Mode, it is not being caused by an extension, theme or hardware acceleration. See if the [[Latest Firefox issues]] article includes a solution and, if it doesn't, try to [[#w_get-help-fixing-this-crash|get help with your crash ID]]. == The crash doesn't happen in Safe Mode == If your crash doesn't happen in Safe Mode, it is most likely because of an extension, theme or hardware acceleration. *Follow the steps in [[Troubleshoot extensions, themes and hardware acceleration issues to solve common Firefox problems]] to determine the cause. = Check your hardware = == Check your RAM for errors == If Firefox crashes repeatedly, check your RAM for errors using for instance the following tool, {for win, linux}[http://www.memtest.org/ Memtest86+]{/for}{for mac}[http://www.kelleycomputing.net:16080/rember/ Rember]{/for}. = Get help fixing this crash = Figuring out the cause of a crash can be difficult. If you've tried the steps above and can't get Firefox to stop crashing, the steps below will show you how to collect information about your crash so our volunteers can help you. # Get the Report ID of your latest crash report: #* '''If you can open Firefox, at least in Safe Mode''': #*#In the Firefox Location bar, type '''about:crashes''' and hit {for win,linux}{key Enter}{/for}{for mac}{key Return}{/for}. A page listing submitted crash reports will appear. #*# [[Template:contextmenu]] on the latest crash under '''Report ID''' and choose {menu Open Link in New Tab}. A tab will open to a page on crash-stats.mozilla<!-- -->.com, saying that "''Your report is being processed''". When it is finished processing, close the report tab. #* '''If you can't open Firefox because it crashes at startup even in Safe Mode''': #*# {for win}Click the Windows {button Start} button, and select {menu Run...} on Windows {for not fx13}2000/{/for}XP or press {key _{[[Image:Windows Key]]}+R} on Windows Vista/7. Type in {filepath "<nowiki>%</nowiki>APPDATA%\Mozilla\Firefox\Crash Reports\submitted"} including the quotation marks and click {button OK}.{/for}{for mac}'''(OS X 10.6 or previous)''' Click the '''Finder''' icon in the dock. Your home folder will be selected. In the right side of the window, click the Library folder to open it. Then open the "Application Support" folder, the "Firefox" folder, the "Crash Reports" folder and finally the "submitted" folder.<br>'''(OS X 10.7 or above)''' Click the '''Finder''' icon in the dock. On the menu bar, click the {menu Go} menu, hold down the {key option} or {key alt} key and select {menu Library}. A window will open containing your Library folder. Then open the "Application Support" folder, the "Firefox" folder, the "Crash Reports" folder and finally the "submitted" folder.{/for}{for linux}Go to {filepath ~/.mozilla/firefox/Crash Reports/submitted}.{/for} #*# In the resulting folder will be a text file for each crash report you have submitted. Using the {menu View} menu, arrange them by date to find out which is the newest file; and double-click on it to open it. # '''[/en-US/questions/new/desktop/fix-problems Click this link]''' to ask for help with your crash. #Summarize your question in the space provided and make it more descriptive of the problem you're seeing, then click the {button Ask this} button. #At the bottom of the next page, click {button None of these solve my problem}. #Fill out the '''Details''' section of the next page with as much information you have about the crash. Include any of the steps you completed above, like updating Firefox or testing for the crash in safe mode. #Copy the long Report ID number you've got above for the latest crash (looks like '''bp-...''') and paste it into the form you're filling out. # Get additional troubleshooting information: #*''You can open Firefox, at least in Safe Mode'': #*# {for win}Go to the top of the Firefox window and click the {button Firefox} button. Then go over to the {menu Help} menu and select {menu Troubleshooting Information}. '''For Windows XP:''' Go to the {menu Help} menu and select {menu Troubleshooting Information}.{/for}{for mac}Go to the menu bar, click the {menu Help} menu and select {menu Troubleshooting Information}.{/for}{for linux}Go to the top of the Firefox window, click the {menu Help} menu and select {menu Troubleshooting Information}.{/for} #*# On the Troubleshooting Information page, click the {button Copy all to clipboard} button and then paste that into the Troubleshooting Information section of the form you're filling out. #Finally, click the green {button Post Question} button. {note}We know that providing all this information is time consuming but it will make it much easier for our volunteers to help you.{/note} <!-- MZ credit --> <br/> <br/> '''''Based on information from [http://kb.mozillazine.org/Firefox_crashes Firefox crashes (mozillaZine KB)]''''' [[Template:ShareArticle|link=http://mzl.la/Kpf7Zn]]