Firefox Community Forum

Since `monospace` means something diffrent on every device, and I need consistency between clients I use `Roboto Mono` on my Website as ASCII-Art font. For some reason Firefox on Windows cannot render the font properly (view image). What can i do to fix this? The problem presists across my desktop and Laptop. See for yourself https://nx2.site/my-ascii-art (I cannot guarantee this is always up + In the future it's hopefully fixed?)

I've been using Firefox for many years without a problem and have always liked it, but I've recently starting encountering a problem where Firefox consistently crashes after closing. After I close Firefox, the Windows Task Manager shows it still in memory. After a couple of minutes, the Mozilla Crash Reporter screen pops up informing me that Firefox had a problem and crashed, with an option to restart Firefox or Quit. I tried refreshing Firefox, which was a challenge because of the problem of hanging in memory after closing, but it did not resolve the problem. I also tried uninstalling it, then deleting the Mozilla folders and clearing out any references to Firefox in the Windows registry, and reinstalling it. I haven't installed any extensions yet; but sadly, I continue to encounter the problem. Any ideas about how to resolve the problem?

I should mention that I had bought a new SSD for my computer and migrated everything over from the old SSD to the new one. The problem with Firefox began after the migration. Everything else that was installed there works without a problem. I would be surprised if this is related to the issue considering I've reinstall Firefox.

Prior to Version 113.0.1 I had No problems with all my web sites. Now, I have major issues. From not being able to log on to having to close the browser totally because Firefox won't allow me to go back to the site's home page. I know this accurate as I can log on to the sites via Safari and No problems and the sites work correctly.

I have a few websites, among them glovoapp.com and work Kibana, that don't open properly in my regular Firefox session any more even though I tried to remove cookies related to those websites and anything else I could think of. They work fine in private window but it means I have to authenticate each time. What steps do I need to perform to completely clean a website settings from Firefox memory?

In case of Glovo (and several other websites) in regular Firefox session there's an error: Content Security Policy: The page's settings blocked the loading of a resource at inline ("script-src"). Same doesn't happen in private window.

In case of Kibana (and several other websites) in regular session Firefox somehow remembers old authentication - it doesn't ask for new credentials and doesn't send Sec-Fetch-User header (which results in Kibana throwing HTTP 405 Method Not Allowed). In private window the header is sent correctly.

I'm using Tridactyl so I tried to use the :sanitise glovoapp.com command which, in theory, should remove everything that can be removed with API calls as described on https://developer.mozilla.org/en-US/docs/Mozilla/Add-ons/WebExtensions/API/browsingData/DataTypeSet - it's not enough.

when playing videos, firefox makes the videos much darker and higher contrast than the original videos, as well as maxing out the cpu on my laptop when playing video, started a day ago or so.

When FF (113.0.1) is maximized clicking on the first (left hand) pinned tab does not open the tab. Hovering over the tab doesn't change the background color of the tab.

If I restore down the window, hovering over the tab changes the background color of the tab from light grey to a slightly darker grey and clicking the tab opens it.

Firefox is using a massive amount of ram for an unspecified task, simply defined as "GPU" is the baked-in task manager. The attached image is after a fresh reboot, with Firefox consuming about 8 GB more than it reasonably should, with only three ish tabs loaded.

Hello all,

I am having problems with video playback on some websites (see screenshot attached). The problem is that the video options start to "multiply" - for example, when I start the video there is (as is normal) one 'Speed' and one 'Quality' button, but then every second these buttons start to multiply. This happens only on some websites - for example, it does not happen with normal videos on YouTube, although it happens on YouTube Shorts sometimes.

This is my first question on the Mozilla Support page, I thank you in advance for your help and I hope I follow the community guidelines. Please feel free to leave any suggestions or feedback concerning how I should proceed for asking for help in the future.

I have a new Mac mini M2, and Firefox will not work. I have had zero problems with FF on my old mini.

I am operating MacOS 13.3.1 (a), and trying to get Firefox 113.0 to work. It will start, but, after running through the new-install windows, it will not load any pages, such as google, and gets stuck in "a checking for updates" loop. Eventually, I have to force quit. I have removed all traces of previous versions from my system, and restarted, then done a clean install of FF, without loading any previous information, files, tabs, etc. Just the bare bones. All antivirus is off. No plugins other the the Open H264 and Widevine Content Decryption. No extensions. Set on standard privacy.

I have done this several times. Working in trouble shooting mode makes little difference. I can sometimes open 3 tabs before everything goes south.

Safari is working fine.

I'm about to give up on Firefox. Any help would be appreciated.

I noticed that on Facebook there is not shown data and time on every post. Some posts show this info, the other don't. I cleared cookies, deleted Facebook from history but it didn't help. On Chrome everything is showing normally. I put Firefox in solving problems mode, with add-ons off, it didn't help too. Any solutions?

I have an extension (completely blank) that can't be deinstalled. I am trying to use the "refresh firefox feature" to get rid of it, but the button simply isn't where it should be. The text is german, but none if these Buttons are the one I seek.

Hello, I hope someone can help me.

Ever since I updated firefox, my cpu is almost at 100%. With only 2 or 3 tabs open. I updated from version 106.0.2 to 112.0.2. Before this update, I could have several tabs open, up to 10 and the computer would run fine. Now with 3 tabs open, it gets really slow. And I can hear my desktop suffering (the fans go to full speed). When checking the task manager, firefox is taking all the memory and the cpu usage is almost at 100%. I have to keep restarting firefox.

The conditions are the same. The only thing that changes was updating firefox. I already searched for ways to reduce the firefox cpu usage, but nothing changed.

Is there a way to fix this? Or how can I go back to an older version of firefox? Because I'm afraid my computer will die from simply opening 3 tabs.

Thank you in advance.

Moin all,

since some several weeks I'm facing a real anoying problem. Every Youtube (and other platforms) Video shows extreme brightness. It looks like as someone recorded the video directly in the sun. An example is the best so I attached a Photo with FF in the top left, Chrome in the top right and Edge at the Bottom. Only the frames have been a bit cropped for privacy.

The video shown in the screenshot can be found here. Today I also tried a fresh installation of my Win 11 and also FF (Had some free SSD around for that). But this had no effect, it looked the same. The only change I can see is when the Troubleshoot mode is being activated. But only while this mode is active. If FF is being reset or even new installation (like before fresh Win 11), no change.

Cause of this behaviour I also mentioned FF Video Stream is not HDR. The others show HDR but as not every Youtube Video can be HDR I think this is not the Problem. Anyway, I don't want to change my favorite browser which was working now for about 20 years.

Does anybody have a clue what is causing this or is it a bug?

greets indy

Since probably 3 or 4 weeks ago Ebay through Firefox has been terribly slow. I have selected the option not to track in the address bar and still the same problem. I run ebay through MS Edge and runs perfectly. Happens to me in 3 out of 4 computers. Only in 1 works ok, very strange...

Speed connection in all of them is at least 200mb/s

Thanks.

Currently Firefox is redirecting http://localhost:8080 to http://localhost:8081 , each time when type the address in the URL address bar.

I have been working with a container wordpress. I have tested in chrome the address http://localhost:8080 and all works fine.

How can we fix that problems, thanks in advance.

I have removed cookies and site data of localhost in Privacy-and-security> Manage-data>

screen-cast https://imgur.com/lWV1WFa

All typed text appears blue until you break it in some ways like pressing the spacebar or moving the keyboard cursor with the arrow keys. It happens at the firefox search bar as well, and search suggestions and autocomplete doesn't work whenever it happens.

Since Ebay changed their format for auction ads the photos that are part of the ads open as faint negatives that can barely be seen. However, if you right click on one and save to a new tab they are fine.

I have a blog hosted on Render. The base URL provided by them is https://parker-codes.onrender.com. This URL works perfectly, in all browsers.

I purchased a domain from Google and then linked a CNAME record to the Render one: https://blog.parker-codes.dev. This URL works in many browsers except for Firefox Mobile (on Android). I receive the error "Address not found. The browser could not find the host server for the provided address."

- I flushed the DNS cache and checked that it propagated across the globe. I used nslookup to verify the domain resolution. - I tested in various other browsers on desktop (Safari, Chrome, Firefox) and mobile (Chrome) and they all work. - I turned off mobile extensions. I also tried in a private window. Still no luck. - I reached out to Google support. They don't see any domain or DNS issues on their end.

From all of this, it appears that the Firefox mobile browser has a bug that can't load the site for some reason. It can't properly resolve the host even though many other browsers can.

When trying to play videos on my laptop they look terrible. The video is completely blown out and doesnt apear as it should. When turnnig on the troubleshoot mode it fixes it but then the video becomes choppy. I cant attach a photo because it looks normal when a screenshot is taken