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  • Archived

mp4 videos fail to load using <video> tag

I am trying to add an mp4 video to my website using the following code: <video width="320" height="240" controls> <source src="images/###.mp4" type="video/mp… (read more)

I am trying to add an mp4 video to my website using the following code:

<video width="320" height="240" controls>
  <source src="images/###.mp4" type="video/mp4">
</video>

where ### is the name of the video file. I get the following error message:

"No video with supported format or MIME type found."

In the console the following is displayed:

"Media resource http://127.0.0.1:5502/images/###.mp4 could not be decoded. video.html All candidate resources failed to load. Media load paused. video.html Media resource http://127.0.0.1:5502/images/###.mp4 could not be decoded, error: Error Code: NS_ERROR_DOM_MEDIA_METADATA_ERR (0x806e0006)"

Runs just fine in Chrome and I have no pop-up blockers installed. Autoplay is set to be allowed for all websites.

Windows 11 version 23H2. Firefox version: 126.0 (64-bit)

Asked by crb001 1 year ago

Last reply by TyDraniu 1 year ago

  • Archived

Cannot print from Firefox in Win 11, unless I log in as a different Windows user?

I cannot print from Firefox. It worked fine, and then stopped. I'm not sure what changed. It doesn't matter what printer I use. Even printing to PDF fails. No errors appe… (read more)

I cannot print from Firefox. It worked fine, and then stopped. I'm not sure what changed. It doesn't matter what printer I use. Even printing to PDF fails. No errors appear, and nothing shows up in the printer queue. All the other applications in Windows print just fine. It's just Firefox. And just for this one Windows user.

I tried clearing the saved printer settings in the about:support page. I tried refreshing Firefox. I tried uninstalling and reinstalling Firefox. I tried uninstalling, removing the mozilla folder in %appdata%, and reinstalling Firefox. No luck.

The only time I can get it to print anything is to log into a different user account on this same PC. Printing from Firefox seems to work then.

It seems there is some user-specific printer setting/file/whatever that is messed up. I'm not sure what else to try.

Thanks.

Asked by jason147 1 year ago

Last reply by cor-el 9 months ago

  • Archived

move plus sign in tab bar to far right

The plus sign in the tab bar has always been on the far right side. I reloaded Firefox yesterday and now the plus sign is directly after the tab. How do I get the plus … (read more)

The plus sign in the tab bar has always been on the far right side. I reloaded Firefox yesterday and now the plus sign is directly after the tab. How do I get the plus sign back to where I like it?

Asked by hankone225 1 year ago

Last reply by hankone225 1 year ago

  • Solved
  • Archived

Latest update glitched firefox unusable

Hi After the latest update, the address bar dissapears everytime I click on it to type in an address. It gets hidden behind previous addresses I visited. Completely unusa… (read more)

Hi After the latest update, the address bar dissapears everytime I click on it to type in an address. It gets hidden behind previous addresses I visited. Completely unusable. I have no idea why it is so bad and how to fix, please help. Thanks

Asked by Randi Taylor 1 year ago

Answered by Randi Taylor 1 year ago

  • Archived

HTTP/3 issues

Is there a way to force FF to use HTTP/3? There are multiple instances (youtube, for example) when site says "alt-svc: h3", but FF ignores it and keeps using at best HTTP… (read more)

Is there a way to force FF to use HTTP/3? There are multiple instances (youtube, for example) when site says "alt-svc: h3", but FF ignores it and keeps using at best HTTP/2.

Asked by Merssedes 11 months ago

Last reply by Merssedes 11 months ago

  • Solved
  • Archived

Language Pack didn't apply properly

After applied Chinese Language Pack, the menu didn't change ,even after restart firefox or the system. I tried refresh firefox and re-install the language pack, the same … (read more)

After applied Chinese Language Pack, the menu didn't change ,even after restart firefox or the system. I tried refresh firefox and re-install the language pack, the same situation appeared.

Asked by Copyerder 1 year ago

Answered by Paul 1 year ago

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  • Archived

Firefox Slow to Load Youtube with Ublock Origin

As the title says, it is very slow with Ublock Origin. I have refreshed Firefox and without Ublock it obviously works but I would like to keep the extension because it is… (read more)

As the title says, it is very slow with Ublock Origin. I have refreshed Firefox and without Ublock it obviously works but I would like to keep the extension because it is the only one that works with Youtube Ads right now.

Asked by SuMo Bot 1 year ago

Last reply by jscher2000 - Support Volunteer 1 year ago

  • Solved
  • Archived

Address bar jumping off screen when used

Since 2 weeks, I have been facing a UI error in the address bar. Whenever I select it to type something, the bar and search suggestions jump up off-screen. Pic attached. … (read more)

Since 2 weeks, I have been facing a UI error in the address bar. Whenever I select it to type something, the bar and search suggestions jump up off-screen. Pic attached.

Asked by rahul.epsilon09 1 year ago

Answered by cor-el 1 year ago

  • Archived

Youtube audio is cutting/bugging out on vids after looping sometimes.

Ever since I switched to Firefox a few months ago, i've noticed that the audio on youtube music vids cuts out when I put the video on a loop sometimes. Moving the play ba… (read more)

Ever since I switched to Firefox a few months ago, i've noticed that the audio on youtube music vids cuts out when I put the video on a loop sometimes. Moving the play bar to a different point/time on the video fixes it but it is extremely annoying. Can anyone help with fixes? Thanks

Asked by up656196 1 year ago

Last reply by up656196 11 months ago

  • Solved
  • Archived

Firefox Sync And Windows System Restore -- Backup Files Saved?

Full scenario: Computer had some issues, so I set up Windows Backup/Restore to a point just before resetting it, saving that data to an external drive. Then, I reset Wind… (read more)

Full scenario: Computer had some issues, so I set up Windows Backup/Restore to a point just before resetting it, saving that data to an external drive. Then, I reset Windows, choosing the option that lets you keep your files (most of them it looks like) while it reinstalls everything else.

I knew it'd wipe Firefox and I'd need to reinstall it, but when I synced my account, it didn't have logs. The logs are archives of various chats on a website I used to talk to friends. I know those used to be accessible through Firefox's directory under Program Files by checking the data saved for that website (something I had to do once before to remove corrupted logs), but that data obviously wouldn't be there now.

I should've considered this beforehand but I had no idea that data for different websites might not be included in a sync. It does have files for Firefox but I decided not to touch them, since I'd already synced and I didn't know if reverting to that Backup might break Firefox somehow. Or worse, cause me to lose MORE data.

Question now is, what's the chance those might be in that backup I saved? More specifically, data stored about websites I visited.

Asked by Always Tired (Jensen Draws) 1 year ago

Answered by Always Tired (Jensen Draws) 1 year ago

  • Archived

YouTube videos at 4k lagging/buffering using vp09 codec

Example video I have issues with: (https://www.youtube.com/watch?v=udXuzXhb9WY) I can't watch youtube videos smoothly using the vp09 codec at 4k/1440p [Codec: vp09.00.51… (read more)

Example video I have issues with: (https://www.youtube.com/watch?v=udXuzXhb9WY)

I can't watch youtube videos smoothly using the vp09 codec at 4k/1440p [Codec: vp09.00.51.08.01.01.01.01.00 (313) / opus (251)]. Constant buffering, lag, pausing of the video or just not playing at all keeps occurring with the video I put above for example, and other videos using the same codec.

My internet connection is very quick in fact, with getting ~90mbps upload/download. My computer specs are good, having an i7 12700kf and an rtx 3060 with 64gb of ram. All my drivers are on the latest version. The video I linked above plays for about 10 sec before not loading more of the video and just infinitely loading (The main issue that is causing this to happen is that when I open stats for nerds, the buffer health isn't being updated).

I tried various solutions online that I found on forums, such as forcing av1 encoding, which fixes the issue, however on that specific video I linked, keeps the quality at 1080p, which probably is a issue on youtubes part and the file format of the video. I tried many other fixes.

On microsoft edge, the video plays fine with no playback stutters or anything. I don't have any 3rd party extensions installed that may affect the video playback. I did a lot of things to eliminate as many variables as possible, but the issue persists. I did a full reinstall of the browser, reseting cookies and temp data and also trying the nightly version of firefox, but non of those fixes worked. Basically everything I thought of I did.

Like I mentioned before, this issue is NOT only for the youtube video I linked, but its for all videos using just the vp09 codec for the 4k/1080p quality. The only fix I did find for that video is actually while writing this, I left the tab open for the youtube video for a while then played it and it played smoothly with no interruptions and the buffer health was constantly being updated, but after refreshing the page, it was the same.

From what I can remember this issue hasn't been happening for the lifespan of my pc (less than 6 months), and I cannot remember when the issue started happening. It seems to be pretty recent (maybe 2-3 months if I were to guess). At first I started tolerating it and thought it was a small bug since it only happened on videos I played at 4k using the vp09 encoder, but now its really frustrating and makes it possible to watch most 4K content. Some videos I notice when it starts buffering, it resorts to an alternate av1 codec for 4k video, but its only for certain videos. Unfortunately I cannot back track and see what started this issue.

Here is some additional info:

   Windows 11
   NVIDIA Game ready driver version (555.85)
   No abnormal resource usage (Gpu, Cpu ram etc.)

Asked by harpoonwtihaz 1 year ago

Last reply by jonzn4SUSE 1 year ago

  • Archived

DuckDuck Go extension not finding searches in Firefox

Had an update for Firefox happen last night and now the Duck Duck Go extension will not work. Just goes search not found? Here is the error - There was an error displayi… (read more)

Had an update for Firefox happen last night and now the Duck Duck Go extension will not work. Just goes search not found?

Here is the error - There was an error displaying the search results. Please try again. When I turn off the extension Firefox runs fine.

I had turned off the extension first and turned back on same issue. Removed extension and reloaded same issue. Restarted router same issue. I have uninstalled Firefox and then reloaded same issue with Duck. Duck Duck Go works in my Edge browser

Asked by Mark Lange 1 year ago

Last reply by James (On Leave) 1 year ago

  • Archived

New tabs crashing

Hi, having an issue where new tabs crash while browsing. Will be fine for 30 minutes or so but opening a new tab/clicking on a bookmark leads to Gah. Your tab just crash… (read more)

Hi, having an issue where new tabs crash while browsing.

Will be fine for 30 minutes or so but opening a new tab/clicking on a bookmark leads to Gah. Your tab just crashed.

Using a working tab is OK as long as I stay on the same site.

All drivers are updated.

Once it happens, I close my browser and I am then fine for a while.

Removed all themes/add-ons in case of conflict but still same issue so re-added.

Any advice appreciated.

Asked by aidan8 1 year ago

Last reply by cor-el 1 year ago

  • Solved
  • Archived

My browsing history in my sidebar is a day behind since I upgraded my Mac OS to Sonoma

I have just upgraded the OS on Mac Mini with the M1 chip to Sonoma (14.5) I am running Firefox 126.0. Now it seems that I have more than one problem since the upgrade. T… (read more)

I have just upgraded the OS on Mac Mini with the M1 chip to Sonoma (14.5) I am running Firefox 126.0.

Now it seems that I have more than one problem since the upgrade. The browsing history in my sidebar is not current. It is running about a day behind.

I reported earlier that the type on my LinkedIn is only out 7 pt when my settings have the minimum size at 14 pt.

Somebody please help. I'm afraid to do a refresh because I don't know what it will do to my banking settings.

Ellen Perless

Asked by eperless 1 year ago

Answered by cor-el 1 year ago

  • Solved
  • Archived

drag and drop url to bookmarks bar not working with >100% default page zoom

I was in the middle of asking this question when I fixed (worked around) the problem so I'm posting more as a informative post as there is a lot of old misdirection out t… (read more)

I was in the middle of asking this question when I fixed (worked around) the problem so I'm posting more as a informative post as there is a lot of old misdirection out there now.

I am(was) unable to drag any URLs from the URI drop down field in the main interface to my bookmarks toolbar. Nor was any drag and drop functionality working in the "Customise Firefox" screen (right click space on url bar -> Customise Toolbar).

I have now found that resetting my zoom setting in preferences to 100% restores this functionality. The problem arose when I was using 120% zoom, NOT text only.

Asked by 4t0m1c4 1 year ago

Answered by TyDraniu 1 year ago

  • Solved
  • Archived

ALT-SHIFT-LEFT got remapped to 'select tab to the left' out of the blue

ALT-SHIFT-LEFT has been 'select word backwards' for years, at least on macs. And so it was on FF too. Now they suddenly decided to re-map it to 'select left tab'. There w… (read more)

ALT-SHIFT-LEFT has been 'select word backwards' for years, at least on macs. And so it was on FF too. Now they suddenly decided to re-map it to 'select left tab'. There was already a key for that - CMD-ALT-LEFT. Which also works for the right, whereas ALT-SHIFT-RIGHT does nothin

Asked by fritzthecat4 1 year ago

Answered by jscher2000 - Support Volunteer 1 year ago

  • Archived

why is firefox not showing up in my authenticator app

Why is firefox not showing up in my authenticator app??? I saw a previous post that has since been closed suggesting the solution be disabling 2FA authentication - with … (read more)

Why is firefox not showing up in my authenticator app???

I saw a previous post that has since been closed suggesting the solution be disabling 2FA authentication - with all due respect to whoever suggested that, I don't think that should be the best solution. I'd like to keep 2FA enabled. I'd just like to know why Firefox doesn't appear in my Google or Microsoft Authenticator apps. I end up having to use recovery codes which makes the process a pain.

Asked by Craig A. Smith 1 year ago

Last reply by cor-el 1 year ago