Uncheck the Use Default option and select ‘Allow Audio and Video.’ Step 4: In the following window, navigate to the Permissions tab and locate Autoplay settings. Step 2: Click on the padlock icon on the left of the website’s URL and click on the arrow from the menu that pops up. Step 1: Open Firefox and visit to the website that has trouble playing videos. For instance, if you have blocked a website from auto-playing video and audio, such issues may arise. Lack of relevant permissions is another reason why websites fail to play videos on Firefox. Restart Firefox and check if it can play videos. Uncheck the box for ‘Use hardware acceleration when available.’ Step 2: In the General tab, scroll down to the Performance section. Step 1: In Firefox, click on the menu icon in the top-right corner to open Settings. That said, if you’re having trouble loading videos or if Firefox keeps freezing on you, then it’s best to turn it off.

Hence, hardware acceleration comes pre-enabled in Firefox.

To access the incognito mode in Firefox, click on the three horizontal lines in the top-right corner and select the New private window.Įnabling Hardware acceleration allows Firefox to improve its visual output by assigning graphics-intensive tasks to your GPU. This loads the website without any add-ons, cache, cookies, or browsing data and help verify if one them causes the issue.

Open the website you’re trying to access in an incognito window. Whether it’s one of the add-ons on your browser or the existing cache data that’s interfering with the video playback, this guide will take you through all the possible solutions to fix the videos not playing issue in Firefox.

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