Firefox Support Forum

No Video with Supported format and MIME type found is not allowing me to play videos on website.

No idea what's the cause of it, I've tried everything from internet tips how to solve this.

When using investing.com charts (which use javascript) sometimes we get a broken chart. It displays "invalid symbol" in the right hand corner of chart. It looks like chart is served within

<meta charset="utf-8"><meta http-equiv="X-UA-Compatible" content="IE=Edge"><link type="text/css" href="bundles/vendors.a94ef44ed5c201cefcf6ad7460788c1a.css" rel="stylesheet"><link type="text/css" href="bundles/library.52e38673a3ae3d2e5f987488bd06a8b2.css" rel="stylesheet"><style type="text/css"></style><link type="text/css" rel="stylesheet" href="https://tvc-invdn-com.investing.com/web/1.12.34/custom.css"><style type="text/css"></style><script -="" the="" error="" is="" replicable="" using="" a="" fresh="" install="" replacing="" installed="" to="" same="" profiles.ini="" link.="" (could="" it="" be="" persistent="" storage="" firefox="" settings="" that="" seem="" remain="" after="" deleted)="" -the="" does="" not="" occur="" in="" chrome="" replicate="" different="" installs="" were="" created="" before="" occurred="" and="" use="" link="" for="" startup="" <="" p=""></script>

I run Fedora 37 with KDE Plasma desktop on my Asus laptop. I have been doing so for a few years now on various computers I have owned. I have never had a problem.

About a month ago, I noticed that playing a youtube video in Firefox made my mouse pointer disappear. It is not limited to the page.tab, but all of Firefox, menus, tabs and window controls. When I move my mouse outside of Firefox, the pointer becomes visible. Move it back, and it disappears again.

The mouse functionality still exists inside Firefox, i.e. the on hover highlights all work as does clicking, but the pointer stays invisible.

If I switch from Wayland to X11, this does not happen.

Please put Wayland support back again or tell me how I might fix this. Thanks

Running FF 107.0.1 on Mac 10.15.7 and there is unexpected padding around each website I visit. I've disabled all browser extensions. I'm using the default theme. I've tried restarting Firefox. I've tried restarting the computer but the issues seems to persist. I do not see the same rendering behavior when loading these websites on Google Chrome. I'm including screenshots of what I'm seeing.

This only happens on the Firefox Browser, Chrome and Edge are fine. Whenever I go to sign into my Groupon Merchant page, I get an "Access Denied" message. All the info on your support page shows there are solutions, but access to those solutions are not possible. Solutions online are years old and of no help. I am running the latest version of firefox.

Hi. I have experienced some font encoding problem occurring in the latest version of Firefox, not in previous versions. My system is Mac OS Monterey 12.3.1 and Firefox version 107.0

On some sites the fonts looks totally garbled (see provided screenshots). Disabling "Allow pages to choose their own fonts, instead of my selections above" in Firefox settings fixes the problem, but then all websites I visit displays with default fonts and not as intended. Moreover, I'm a web designer working with the built in web developer tools, and I need to see the correct fonts when developing.

Hoping to get some help with this issue.

Br, Magnus

Using FIREFOX V. 107 on a Windows 10 desktop computer with 32 GB memory.

Dec 18, 2022 With Firefox running in the background while using other apps, they suddenly become unresponsive. I found I can fix this by going to Task Manager, clicking on Firefox then a dozen or more processe open. Clicking on and deleting the smallest one, about 3MB, gets me back up and running. This happens even with no add-ons.

THIS WAS NEVER A PROBLEM WITH OLDER VERSIONS (V100 or before)

If you can't fix this, please make go back to a version which worked. The memory leaks/bloat are a disaster.

DON'T IGNORE THIS ISSUE. IT IS A DAMN NUISANCE !!!

Thanks.

This annoying warning pops up everytime I remote into the webui of a ubiquity wireless antenna for my consulting job. How do I make this stop so I don't have to be bombarded by this nonsense at my already difficult job?

I looked for info on "how to save a window". Googling got me to : https://support.mozilla.org/bm/questions/941808

a. That article is out of date. And, like so many, IT DOES NOT STATE TO WHAT VERSIONS OF FIREFOX IT APPLIES. That is nuissance, considering how often Firefox changes.

b. That article also states to right click and tab and use "Bookmark All Tabs". There is no such right click option. (ff v107.1)

Useless, out-of-date articles should not be archived when they become obsolete. Or, they should be archived with an indication that they no longer apply.

c. How do I save a window?

Hello,

My Firefox browser is crashing a lot after the recent updates. Not really sure what is causing the crashes but anytime I open any websites or try to do some work on the browser is resulting into unexpected crash. I have submitted several crash reports, but haven't had any solutions to the problem.

here the is one crash report: bp-921f5f10-a9ed-48d3-a1b4-f85680221122, bp-0abebf94-c5df-4a41-b9e3-9af8f0221122.

Can you please help us troubleshoot the issue and provide us with a solution if any?

Thanks Nishil

I'm on Windows 10 Auto updated to 108.0.1

UI is broken. See image.

Works in safe mode though.

How to fix?

Or at least guide me on how to backup all my config and create a new profile. Thanks.

With the latest upgrade to Firefox 107.0 there is no option any more to import or manage certificates. Going to Settings/Privacy & Security/Certificates and selecting View Certificates results in a window showing installed certificates with only OK button at the bottom of the window. No option to import, delete, save or anything else. OS: OpenSuse Linux 64bit

Hi

If I click my way through https://www.mozilla.org/de/firefox/all/#product-desktop-release I get a different Link everytime. So as someon who wants to distribute Firefox on different PC's , I want to know: Are there any direct download links for the latest version? The best would be some links like Webex has for distribution (e.g. https://mozilla.org/firefox/windows/FirefoxInstaller.exe)

Thanks in advance Robin

So, I use the latest Firefox in Windows 10. When I receive a notification to Firefox it stays shown for 5 seconds and then goes to the Action Center. If I click on it within the first 20 seconds of up receiving it, it opens the link from that notification. If I click it after those 20 seconds the notification just dissapears. So, they are pretty much useless. I don't have this issue with Chrome. I had this similar issue back in Windows 7. I can't believe Mozilla haven't find a way to solve this. Any hack or workaround, to solve this?

Google with Captcha is killing Firefox.

Captcha constantly comes up in Firefox and stalls browsing.

Not as much of an issue with Google Chrome.

Often stuck for ages entering Captcha nonsense in Forefox.

What can Firefox people do about this crap?

I need to transfer cookies - and ONLY cookies - from one Firefox profile to another. Copying the cookies.sqlite file did not work - none of my preferences or logins were saved on the new profile. How can I copy all my cookies to a new profile?

How often are updates to be sent?? It seems that each time I close the browser, then open up at a later moment, I keep getting a 'Firefox Update' message to download. I AM now getting very annoyed at this point, due to the fact that each time I have downloaded an update, there has been nothing to install, and the next few days after, I see another message to download an update even after I dismiss the alert.