I just came across this - https://x.com/Pirat_Nation/status/1885871258270851135

Ho

So I uploaded some mov files to my webserver and linked them to another reddit post.

But when I tested the video link in firefox I got the error

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

thinking it may just be a coded issue I converted to H.264 .mp4 re uploaded to my webserver.

and still have the same error.

Screen shot

I tested both the mov and mp4 in VLC and they play fine, and the links play fine on chrome.

To trouble shoot I tried the following steps.

Cleared all FF cache and history

Disabled All Addons

Repaired FF

Re installed FF

SFC /scannow

DISM /Online /Cleanup-Image /RestoreHealth

And still get the error listed above

here is one of the links as reference that doesn't play in FF but DOES in Chrome....

Shower Leak Video

I play a game on Board Game Arena, and between turns, I like to read other things, or do miscellaneous stuff on other tabs.. Every time I go back to the Game, i have a grey spinning animation that takes 5-10 seconds, and for the life of me, I cannot figure out how to change my settings to eliminate this delay.

My PC is kinda old.. like 8 years old (Windows10), but I maintain it well. I have 32GB of RAM and Firefox only uses 2GB. I really would like it to use more resources and avoid this bottleneck, but I don't really know how.

I've tried various settings in about:config to reduce inactive tabs, I disabled disk cache.. I just want the tab to stay in memory all the time, so I don't have to reload it.

From what I've read, it sounds like this loading animation is due to switching from one windows process to another.

It's really only happening for this one site (BGA board game arena).. Maybe it's because very heavy javascript use?

Any suggestions? Thanks!

https://i.imgur.com/kveR07s.png

I am having a horrid issue with Firefox (on Ubuntu) where i customise Firefox, Sign-in to sync and my day-to-day websites however when i close Firefox and open it again it 'defaults' and i lose everything.

This was happening on Ubuntu 24.04 so i thought i would complete a fresh install upgrading to 24.10 however this is still happening!

Any ideas?

https://preview.redd.it/1xu4kfwo2zge1.png?width=281&format=png&auto=webp&s=0f6285c35ec095873dd6b17cd5c1243c8f2ff838

https://preview.redd.it/6wxh6hto2zge1.png?width=268&format=png&auto=webp&s=85940bd2c8558e5e7168684b0bb68b4ab552c3c5

https://preview.redd.it/occb5ato2zge1.png?width=283&format=png&auto=webp&s=7ffbd284cd47b8cb3e8ba5bee81cbc597d21b735

I restarted my computer last night and it updated my Firefox. Now my right click is showing every possible selection. None of them work, even the ones that should.

Is there a way to fix this?

Sorry if this isn't the type of post that belongs here. I'm a youth hockey coach and I subscribe to a service called LiveBarn that has footage from many local hockey rinks across the country. I was trying to watch a video-on-demand from a game of last weekend but it would play maybe a second of video before buffering.

I opened a support ticket with LiveBarn and they said to use Google Chrome. I grumped about it but went ahead and re-installed and sure enough it worked fine.

I'm on the latest version of Firefox (134.0.2) on Windows 11 64-bit. Not sure what shenanigans might be happening in the background but I'm curious what would cause a video stream to play fine in Chrome but be completely unwatchable in Firefox. I do have uBlock Origin installed for Firefox but I did try to disable it for that site to no effect.

I want to be able to pick between French and English for spell check. When I use the option to add another dictionary and add French, nothing really happens, I never get an option for French in spell check. Under add ons there is a dictionary section and a language option, the new language goes under dictionary instead of under language, not sure what the difference between the two even is.

How does this work exactly? They made it kind of confusing.

Hey, I am looking for the add-on which can summarize the YouTube video. I have tried few add-ons for summarization, but it does not work. If someone have any suggestion for the add-on do let me know, thank you.

Hey, I am looking for the add-on which can summarize the YouTube video. I have tried few add-ons for summarization, but it does not work. If someone have any suggestion for the add-on do let me know, thank you.

I just did a reinstall of FF on a newly installed win OS. Before the reinstallation, bookmarks showed from the search bar and in my preferred order. For example, if I wanted cnn.com, all I had to do was type cnn and its homepage would display before any other bookmarks that had cnn in them. Now what happens is that those same bookmarks (of which their are many for various articles) come up in a seemingly random order and just plain cnn,com isn't in the visible list. I set the program to only put bookmarks in the address (exactly as before) and to not put search results ahead of bookmarks as before. So, how can I fix this?

I am using firefox developer and what I found is, a request from chatgpt have Status 200 and Blocked at the same time.

I am not able to find any reference to it on internet. Can you please guide me on it : )

Thank you.

Hi, is there any way to pin a link to a Bear App note in Firefox on iOS? The url would be something like bear://x-callback-url/open-note?id=JHGKJGL-5GFIO-422F-AD19-JDHKNG

Any ideas?

I want to use this extensions on my smart tv how to do it

One of my friends claims to have seen my 'Incognito search history'. Does something like that exist? He had my phone with him for approximately 5 minutes. Is it possible to see my search history in private mode in Firefox on a phone? If there is such a thing can the 'incognito search history' be deleted ?

i know some people dont like this on mobile, I am just sharing my experience of using it it vr

in vr(Which I assume tablet mode) I can switch tab way easier than before, its actually a pretty nice feaure, below are the comparisons of old and beta version with toolbar

https://preview.redd.it/77lqp6grvxge1.jpg?width=1920&format=pjpg&auto=webp&s=96ba6ec29b353d5ea40fd3e008f415492b781c19

https://preview.redd.it/wkpk85grvxge1.jpg?width=1920&format=pjpg&auto=webp&s=62e0309f3501790f3293c9d0c6e7ca8334ebdd4e

Is there any way to force a hard refresh every time from a specific domain (or even all domains is fine but better for specific domain).

I'm looking to be notified when items pop up as available. I have an addon i like that works well to do so, but theres no option to make it force the browser to do hard refreshes. so sometimes itll refresh and the item wont show because its pulling from cache only to then show me the item has sold afterwords.

I need something where I can simply tell it every time i go to amazon (for instance) refresh without using cache. If it doesn't offer domain specific that is fine, i don't mind hard refresh for every web page, but it must be something that can happen across multiple tabs. not something i must click in a single page (like developer tools)

Hello..

The back button in Firefox windows browser causes the previous page to refresh for certain websites (maybe all websites?) I work on a lot, which is unwanted by me.

The same thing doesn't happen with chrome or edge, and I prefer Firefox to these two but this problem is a hassle to be honest.

https://preview.redd.it/n8s1bs2i8xge1.png?width=1838&format=png&auto=webp&s=9b9d30d026d7ace2397e6fef4dbf1026cc1cdd73

I don't know if it's noticeable in the photo, but it's noticeable to me, the font is brighter or something in other browsers while in FF it is kinda hard to read on some websites

So A lot of work has been done since initial release and I plan to do a lot more.

As this extension is inspired by chrome and edge most of the features they have been ported over here as well.

Q-Gen

Features included

1)Added ability to generate your QR codes.
2)At launch the extension generates the QR code of the active tab.

3)Simple theme across the extension.
4)Ability to Copy and download QR codes.
5)ADDED Context menu for generating the QR code of active page(Generating of specific links in a page will be added in future)

All of this done while maintaining speed and efficiency.(More work will be done on this as i understand better techniques).

Thank you if you check this out and let me know if you have any other suggestions.

This is how the extension looks and scan this image to get an idea on how this extension works.

Any free alternative addon?

Features I need: Timer, whitelist mode or regex, override mode

Hi! Does anybody know how to control or reduce the mobile data while using Firefox Focus? I would love to for example stop or lower image quality. Or stop video autoplay etc Or does it have any feature that lets me do this? Thanks!

Hello! 🙂

I mostly use horizontal tabs. However, when I have a lot of tabs open, I sometimes switch to vertical tabs to better see their titles.

Is there a way to add a button that allows me to toggle between horizontal and vertical tabs with one click? This would be much more convenient than going through three steps: opening the sidebar, accessing the sidebar options, and then changing the layout.

Thank you! 😊

in windows 10

tried searching but could not find a solution

i am using vertical tabs bad

customizing toolbar is not helpful as this simply disappears

thanks

https://preview.redd.it/31ouw19ukwge1.jpg?width=639&format=pjpg&auto=webp&s=bed0dece88ccb444149b0de1fd40e56816315da5