Videos Not Working on Firefox? 13 Fixes Here with Reasons

It could be a freezing screen, non-stop buffering, or just a black screen where your content should be; videos not working on Firefox are indeed frustrating. Hiccups like these can turn your potential entertainment into annoyance. However, the good news is that these playback issues come with straightforward solutions! This post will share with you the 13 practical ways to troubleshoot and fix videos not buffering and not playing on Firefox, getting you back to your shows in no time!

Reasons for Videos Not Working on Mozilla Firefox

When Firefox is unable to play videos, it is likely that the issue stems from outdated software, browser settings, or external conflicts. Identifying the cause of the problem can help find the right solution.

Why Don't Videos Play on Firefox?

Other Playback Issues on Firefox:

7 Basic Ways to Fix Firefox Video Buffering and Not Playing

Fortunately, the videos not working on Firefox problem can be fixed with just a few simple steps. See below the seven easy and effective ways to get your videos playing smoothly again on Mozilla Firefox.

1.Restart Firefox

Exit, then reopen Firefox browser to clear out any temporary bugs or some memory issues that may be interfering with the video playback.

2.Clear Firefox Cache and Cookies

Old or corrupted cache and cookies can affect how videos work on your Firefox browser, giving you the videos not working on Firefox issue. To clear cookies and site data, go to "Settings" > "Privacy & Security" > "Cookies and Site Data" and click "Clear Data".

3.Check for Firefox Updates

For an outdated version, you may face compatibility issues. So, go to "Menu" to "Help" then select "About Firefox" to check for and update the browser.

4.Update Your Graphics Driver

Running an outdated graphics driver can result in lag, stuttering, or display issues like black screen on videos. What you must do now is to open the "Device Manager" on your computer, then head to the "Display adapters" category, and there, select your drive, then "Update driver".

5.Refresh Firefox Settings

Doing a reset in Firefox settings won't delete your bookmarks. Just simply type "about:support" in the address bar, and then click "Refresh Firefox".

6.Reinstall Firefox

If the videos not working on Firefox issue continues, uninstall the Firefox browser completely, then reinstall it from the official website, fixing deeper browser-related problems.

7.Disable Hardware Acceleration

Hardware acceleration may have a conflict with some video content. For this, head to "Settings", then "General" to "Performance", and uncheck "Use recommended performance settings" and "Use hardware acceleration when available".

5+ Advanced Ways to Fix Videos Not Working on Firefox

If those basic steps won't fix the Firefox not playing online videos issue, it is best to dive deeper into advanced solutions. Sometimes, the issue is tied to more serious settings, so here are the advanced fixes you can try:

1.Check Content Blocking

With Firefox's Enhanced Tracking Protection, it can block video elements. Thus, open "Settings" then "Privacy & Security". And from the "Enhanced Tracking Protection", set it to "Standard".

2.Enable Autoplay for Some Files

Mozilla won't play videos if autoplay is blocked. So, visit the site that is not working, then click the "Lock" icon in the address bar, head to "Permissions" and set "Autoplay" to "Allow Audio and Video".

3.Turn Off Firewalls

Since firewalls or antivirus software may block video content, temporarily disable them this time. After that, check if the playback resumes, then configure it to let the browser be an exception.

4.Disable Problematic Extensions

Other extensions, such as ad blockers or script blockers, can affect how the video loads. Open the "Menu" and select "Add-ons and Themes", then "Extensions". Here, disable them individually to determine the culprit.

5.Check About:Config Video Settings

For advanced adjustments, type "about:config" in the address bar. Find the entries like "media. autoplay.default" and set them to zero to allow autoplay.

6.Install Missing Media Codecs

If Firefox won't play videos in certain formats, it is possible that system codecs are missing. For this, you can install the "Media Feature Pack" and follow the on-screen instructions to complete the installation, which will fix file format is not supported problem.

Best Video Repair Software to Fix Unplayable Videos

What if you're struggling with videos not playing at all on your computer, and not just the corrupted Firefox videos? In this situation, AnyRec Video Repair is among the best solutions to try first. This powerful software is designed for fixing damaged or unplayable video files caused by missing data, transfer errors, or corruption. Here, you don't need any technical skills, just simply upload the unplayable video along with a sample video, and let the repair software do the magic.

Step 1. Fire up the AnyRec Video Repair on your computer. Click the "Add" button to upload your unplayable video file, then on the other side, upload the sample video.

Step 2. Click the "Repair" button to initiate the fixing process. The tool will immediately scan and fix the damaged parts of the video, making it playable.

Step 3. After the repair, click the "Preview" button to check if the video plays correctly. Check the details below, like resolution, bitrate, etc., and if your video looks great, click the "Save" button to get the fixed version on your computer.

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