Firefox has remained one of the top choices as a browser for years now. It has consistently maintained a dedicated set of users over the years. Firefox is known for its privacy and ease of browsing. However, it is not exempt from issues.
One such issue reported by its user base is that sometimes Firefox won’t play YouTube. YouTube not playing on Firefox is not a big problem and it can be solved easily with the solutions I have mentioned here.
What To Do When Firefox Won’t Play YouTube?
YouTube is an important source of information for many of us, irrespective of the browser we use to access it. YouTube videos not playing in Firefox can be frustrating for many dedicated Firefox users. This issue can be easily fixed by following these troubleshooting methods.
Solution 1: Open A New Tab
One of the first things you need to do when Firefox won’t play YouTube is to open a new tab and check if the issue remains there. If it does, open a private window and then check YouTube.
To open a private window, press Ctrl + Shift + P on your keyboard while Firefox is open and selected on your screen. Open YouTube and see if the videos play correctly.
If the videos still don’t play, try the next solution.
Solution 2: Disable Hardware Acceleration
Hardware acceleration is a feature on Firefox that allows it to use the GPU for processing data when needed. This feature is known to stop videos from playing on Firefox. It is possible that YouTube videos won’t play in Firefox for you because of a bug caused by this hardware acceleration feature.
Try disabling hardware acceleration on Firefox and see if the issue fixes. Here is how you can disable hardware acceleration:
Open Firefox and click on the hamburger icon (3 horizontal lines placed on top of each other) located on the upper right corner of the screen. Select the Settings option from the pop-up menu.
After the settings window opens, scroll down to the Performance section. Uncheck the Use recommended performance settings box. This will unlock the hardware acceleration option. Uncheck Use hardware acceleration when available box. This will disable hardware acceleration in your Firefox.
After hardware acceleration is disabled, Firefox should be able to play YouTube normally. If the issue persists, try the next solution.
Solution 3: Clear Browsing Data
If disabling hardware acceleration doesn’t work, you can try clearing the browsing data of Firefox. Cache corruption is a known issue for triggering such problems. Clearing the cache and other browsing data should fix this issue. Here is how you can do it:
Open Firefox and click on the hamburger icon as earlier. Select the History option from the menu. This will open another menu.
Click on the Clear recent history option from the menu. The Clear all history window will appear.
Check all the boxes in the History and Data section. Change the Time range to Everything. Click on Ok clear browsing data on Firefox. This may take a few minutes, depending on the stored data.
After the browsing data is cleared, open YouTube and check if the videos are playing correctly.
Solution 4: Open Firefox In Troubleshoot Mode
Firefox has a Troubleshoot mode where all of the add-ons are temporarily disabled. Try opening Firefox in Troubleshoot mode and see if YouTube starts working. If it does, then one or more of the installed add-ons in your Firefox is interfering with YouTube in some way. Disabling that add-on should fix this issue for you.
Here is how you can start Firefox in Safe Mode:
Open Firefox and click on the Hamburger icon again. Select the Help option from the menu.
In the new menu, click on the Troubleshoot mode option.
Click on the Restart option on the pop-up dialog box. Firefox will restart in troubleshoot mode now.
After Firefox restarts, open YouTube and check if the videos are playing. If still YouTube videos won’t play in Firefox, try the next solution.
Solution 5: Reinstall Firefox
If none of the above solutions work, try reinstalling Firefox. Firefox may have become corrupted and that’s why it is failing to play YouTube videos. Here is how you can uninstall and reinstall Firefox:
Press the Windows + R keys to open the Run command. Type appwiz.cpl in the command box and press Enter.
Locate Firefox among the listed apps and right-click on it. Select the Uninstall option from the pop-up menu. Follow the instructions on the uninstall wizard to complete the process.
After Firefox is uninstalled, visit their official website and download it.
So, there you have it. The above solutions should help you when Firefox won’t play YouTube. If you have any questions or suggestions on this topic, use the comment section to notify us.