Summary: Mozilla Firefox may fail to play online videos — keep buffering, not load videos, give video errors, etc. This post provides quick fixes for firefox not playing videos on any website, including YouTube, Facebook, Hulu, etc.
Mozilla Firefox is one of the fastest browsers with loads of features, privacy protections, and customization options. But often, there are complaints about Firefox video glitches —
– Videos keep buffering in Firefox
– Videos not loading in Firefox
– Firefox won’t load html 5 videos and so on
You may also receive Firefox video error messages, such as ‘an unknown error occurred’, ‘connection to server lost error,’ ‘the video is unavailable error,’ ‘video file cannot be played’, and more.
It could be any reason. Maybe one of your browser add-ons, piled up cache data, or a browser Hardware Acceleration.
Customizing the browser by adding plugins, themes, anti-virus add-ons, or toolbar, etc., enhances your browsing experience. But often, they cause the software to crash with certain websites. This don’t let Firefox access some aspects of a website such as videos.
Online videos are a source of information as well as entertainment. If Firefox doesn’t play videos on YouTube, Facebook, Hulu, LinkedIn, or another website, there must be some issue with the video or the player.
Most of the time, the problem is due to any of the Firefox features. So it requires to disable and re-enable some of the Firefox features as a remedy of the problem.
Try the below methods to fix Firefox don’t play or stream videos problem:
Poor internet connection won’t let you play videos in Firefox. Your online videos may take time to load or keep buffering.
Make sure you are using a faster broadband connection.
Browser updates are known to improve speed and protect against viruses. Plus, they can also fix bugs and software conflicts on your system. So if Firefox is not playing videos, try to troubleshoot by updating Firefox.
Steps to update Firefox:
Cookies and cache are created when you open any website in your browser. They help to open the sites faster on your next visit. But sometimes, cache and cookies may accumulate, creating problems, like video not loading in Firefox, slow browser, etc.
Steps to clear your cache and cookies:
This will remove login status and site preferences. All websites cache information, such as stored images, scripts, etc., gets removed.
You may be using add-ons like extensions, themes, or plugins to customize your Mozilla Firefox browser. However, these add-ons can prevent website videos from loading in Firefox. Try to fix the video issue by disabling your Firefox add-ons – extensions, themes, and plugins.
By default, Mozilla Firefox blocks website videos with sound to play automatically. You will have to enable ‘Autoplay’ to play online videos in Firefox.
Apply any of the below ways to enable ‘Autoplay’ when videos not working in Firefox:
Way 1: Allow Autoplay using Firefox Options.
Way 2: Allow Autopay from website settings in Firefox
6. Next, click Save Changes.
The settings will apply to all the websites you open in the Firefox browser.
5. Select Allow Audio and Video.
6. Restart your Firefox.
Browser hardware acceleration enables Firefox to maximize computer’s hardware usage for graphics-intensive tasks, such as video loading. But sometimes graphics processors and drivers may conflict with Firefox. This may cause trouble in displaying videos on pages. So try once disabling hardware acceleration to check if it resolves Firefox not playing videos problem.
If none of the above methods work, refresh your browser.
Steps to refresh Firefox:
Now try to open videos in Mozilla Firefox; they should play.
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Although it’s frustrating to find Firefox not playing YouTube, Facebook, or other online videos. But now no need to freak out at the browser glitch. Follow the above methods. One of them is surely going to help you fix videos not playing in the Firefox issue.
Hope you found this post helpful. Do share with our readers which method worked for you.
Nishat Paiker is an expert technical writer and editor with over 8 years of experience. She has deep knowledge about data recovery and loves to explore new technology and DIY tools. Nishat has keen interest in photography. You will often find her giving photography tips and hacks.
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