Firefox includes a page with information such as which Firefox version you are using, any installed extensions, important modified preferences, and graphics information. If you are getting help with a Firefox issue on the support forum, content that you provide from this Troubleshooting Information page can help you get your issue solved quickly.
This article describes how to access and use the Troubleshooting Information page.
Click the menu (3-bar) button at the top right corner of the Firefox window. Click the click the help ( ? ) button at the bottom of the Firefox menu. Click the Troubleshooting Information item from the Help menu. You will be taken to a page with the address about:support.
The Refresh Firefox feature can fix many issues by restoring Firefox to its factory default state while saving your essential information. Consider using it before going through a lengthy troubleshooting process.
You can restart Firefox in Safe Mode to temporarily turn off hardware acceleration, reset some settings, and disable add-ons (extensions and themes) that might be causing problems. See Troubleshoot Firefox issues using Safe Mode for more information.
Clicking on the Copy text to clipboard button will copy all the text on the page to the Windows clipboardMac clipboardclipboard.
After copying, you can paste the information into another window for someone to see by clicking the Edit menu in the program you are using and then selecting Paste (or by holding down the Ctrlcommand key and pressingV).
This section lists crash Report IDs, if any, submitted by the Mozilla Crash Reporter during the last three days. Clicking on one of the Report ID links will take you to a web page with details about that crash. Clicking on the All Crash Reports link will take you to the about:crashes page listing all submitted crash reports. To get help with crashes, see Firefox crashes - Troubleshoot, prevent and get help fixing crashes.
Extensions are Firefox add-ons that provide additional functionality to Firefox. This section lists the name of each extension, its version, whether it is enabled, and its ID string. For more information about troubleshooting extensions you have installed, see the article Troubleshoot extensions, themes and hardware acceleration issues to solve common Firefox problems.
Firefox can use your computer's graphics processor to speed up the display of some pages with video and animation, which is called hardware acceleration, and to display WebGL content. This section provides information about your computer's graphics device and driver and will tell you whether hardware acceleration and WebGL are enabled or not in Firefox. Note that graphics features may be disabled because of outdated graphics drivers. For help updating your graphics drivers, see Upgrade your graphics drivers to use hardware acceleration and WebGL.
In this section, you will see a list of settings that have been changed from their defaults. This information will help someone know how you have adjusted your installation of Firefox. For instructions on how to reset preferences to default, see Reset Firefox preferences to troubleshoot and fix problems.
Firefox periodically performs maintenance tasks on your bookmarks and history database (also known as Places database). Use the Verify Integrity button to perform those tasks on-demand. If you're having any problems with bookmarks and history, the Verify Integrity tool might help.
This section shows if you have accessibility software enabled in Firefox.
This section tells you which versions of some runtime libraries are used.
This section has details about current or past telemetry experiments, if any, that you've been part of. For more information about Telemetry, see the article Share telemetry data with Mozilla to help improve Firefox.