A recent update of Mozilla Firefox lead to a bug which causes black screen for some users who have recently updated from version 32 to 33. Firefox explained the black/blank screen problem which came with the update was caused by a new feature called Off Main Thread Compositing (OMTC), introduced in Firefox version 33 and above to provide a faster way of loading pages. If you’re facing this same problem, you can fix it easily by following any of the methods below.
Method 1: Updating Firefox
Mozilla released an update (version 33.0.1) to solve this issue. You can get the latest update by grabbing and installing a fresh setup from here or following the steps below.
Under the Firefox menu, click on Help and select “About Firefox”.
The About window will open and Firefox will start checking for, and downloading updates.
When the updates are ready to be installed, click on “Restart Firefox to Update”.
Method 2: Disabling Hardware Acceleration
Close all open Firefox windows. Open and check the Task Manager (Ctrl + Shift + Esc) to further confirm there are no running Firefox processes.
Double click on the Firefox program on your desktop while holding down the Shift button on your Keyboard.
Click the “Start in Safe Mode” in the Safe Mode dialog box.
Navigate to Firefox Menu > Options > Advanced and uncheck “Use hardware acceleration when available” under the “Browsing” subsection.
Relaunch Firefox normally. You should be able to use the browser normally without any issues.
You can also continue to browse in the Safe Mode.
Method 3: Disable Add-Ons
This issue can also be caused by incompatible add-ons and disabling them is likely to fix the problem.
Open your Firefox browser and select “Add-ons” from the browser menu.
Under the Add-ons section, click on “Extensions” from the left pane of the window.
Disable all the listed extensions, one after the other to find the add-on probably causing the problem.
Remove or Disable any extension causing the black/blank screen problem in your browser.
Method 4: Resetting Firefox Defaults
The last alternative solution to this issue is to reset Mozilla Firefox. Here’s how you do it.
Click on the Firefox menu button and navigate through to Help > Troubleshooting Information.
Click on “Reset Firefox” and confirm the action to proceed with the reset. Wait for Firefox to close and perform a reset.
After Firefox resets, click “Finish” in the next dialog box. Firefox would open again, just as new.
You can also perform this action by selecting “Reset Firefox” after launching it in Safe Mode (Refer to Method 2).