Firefox Community Forum

I've been trying to get this computer to work. The last time a clean install was done a few days ago Firefox immediately remembered my favorites, extensions (or one important one of them) and the configuration of the browser.

Thanks for your Help

p.s. I sense there are changes at firefox. is there something I should know?

Hi Guys for the last week when I add HTML to my ebay description it will not save. Ebay have assertained its a Firefox issue and it started around the upgrade of 18th May.

Any help would be appreciated

Thanks

I recently downloaded Firefox and would like to use it as my primary web browser (M1 14" Macbook Pro). But my Google calendar web site is not showing any colors, making it hard to use. On my other browsers (Brave, Safari, Edge) it works fine . See screen shots below from Firefox, Safari, Brave. I have tried re-booting Firefox, the computer, reverting the Firefox theme back to basics etc., and searching on line for a solution, but I can't find anything. So far all other websites are working OK, except for 1 other that has partially the same problem. If it can't be fixed I'll stop using Firefox, which I otherwise like.

Thanks for any help.

Hello Firefox devs,

First of all - great thank you for this alternative to the status quo.

So - this started some months ago and I thought Youtube implemented some sort of protection so the music sounds obviously different and worse than the original.

But now I played some MP3 files directly from the computer and then played them on VLC player.

Man, I hadn't listened music peacefully for months, because I usually listen my Youtube playlist and it sounds horrible.

Now on the VLC it sounded as it should be and it was a pleasure to listen to, while on Firefox it was s..t

Basically it skips beats, changes tempo, it's subtle but obvious and makes listening music a horrible experience.

The OS is Debian 12 - bookworm, the firefox was always the latest in all these last months, I let it update when it needs to.

It's in virtual machine, but so is VLC and there is more than enough CPU to play a song.

What could it be, is it just me who experiences this?

Thank you for your time.

Good day, I have Firefox 138.0.4 running on Windowx 11 24H2. PC details as follows: CPU = Ryzen 5 2400G RAM = 32GB GPU = RTX 3060Ti 8GB Connection is 50/25Mbps fibre connection

My issue is that when watching F1 from the following site: https://f1tv.formula1.com/, after some time (it differs in how long it takes to manifest), the stream starts to stutter. Note, it is NOT buffering, it is like the stream gets "stuck" or freezes for an instant then continues. The "freeze" then becomes more frequent and sometimes even lasts for about 2 seconds before resuming. The most important fact about all this is that this does NOT happen when using Google Chrome, hence my suspicion that it is somehow related to Firefox specifically. Does anyone have any idea what is causing this and/or how to fix it, please?

Hello, I recently had 20+ tabs open in Firefox. I moved 1 tab of the 20 to be a separate page and closed the other tabs. Now I am unable to re-open the other tabs through the 'Recently Closed Tab' feature. That feature only shows a few new tabs I opened on the separate page. Is the only option to painstakingly search through history over several months to re-open several tabs I had open for several months? Thank you the feedback, Ken

I am installing an extension I trust, called KDSpy, to help me see which books are selling well on KDP Kindle Direct Publishing. How can I go back to click the box "run on private browser" for incognito browsing?

Using this digital card https://www.sendoutcards.com/act/XNBFQFHHNO , the images are squished together instead of displaying correctly on inside left and inside right. On other browsers, like Chrome , Opera, and Edge, they display correctly Why?

Hi! I'm experiencing an issue where videos on YouTube stutter or play choppily when using Firefox. This happens even when the internet connection is strong and works fine in other browsers like Chrome.

Here’s what I’ve noticed:

The issue occurs on both 720p and 1080p videos.

It’s more noticeable when switching to full-screen mode.

I’ve tried disabling hardware acceleration, but it didn’t help.

Firefox is up to date (v126.0).

I’m using Windows 11 and have an NVIDIA GPU with the latest drivers.

I’d appreciate any suggestions or fixes. Thanks in advance for your help!

After a recent update, certain websites (like Youtube) leak script that remains even after the tab is closed, until Firefox is closed. When one of these websites is accessed for the first time, a second tab opens and quickly closes, as if a popup was blocked. One way I can observe this behaviour is that the NoScript extension will detect script for that website on ALL tabs, even blank ones, with the "(sidebar?)" annotation. With Youtube I managed to prevent this by disabling Service Workers in about:config, but for example with tenor.com the behaviour continues to occur even then.

Websites I observed this behaviour on so far: youtube.com (until Service Workers were disabled) tenor.com nami.news

Is this a bug? I have also observed the same behaviour on a different PC for Youtube until I disabled Service Workers on that installation. What should I do?

I use several browsers and when it comes to functionality I consider FFox to be the best however with 1 major drawback - it's speed / lag issues which is why I stopped using it as my primary browser and only as secondary one

I can have 2 different Chromium based browsers open simultaneously and while this impacts the performance somewhat if I open Firefox and another browser responsiveness grinds to a halt (sometimes even crashes)

Even just starting Firefox by itself takes 5x as long as other browsers

So I'm wondering is Firefox just more resource intensive or is there something wrong with my setup?

The main difference between my Firefox install and my other browsers is the number of Bookmarks (10000s) due to me having it installed for much longer so is it possible for a large number of Bookmarks to slow the browser down even when not open ?

Other possible causes I read elsewhere are 'Cookies and site data' (currently around 50mb)

I clear the 'Temporary cached files' & 'Browsing history' on regular basis so they shouldn't be an issue

The add-ons I have installed are NoScript , Ublock Origin & Firefox Color

In regards to troubleshooting is it possible to install a 2nd install on the same system simultaneously without overwriting the current one ?

Thanks

One of the add-ons I use has been permanently disabled. However, the email that the developer received says "Users who have previously installed your add-on will be able to continue using it." Why can't I use it?

Some of my shortcuts were missing on Firefox when I started my laptop this morning. I tried restarting my computer but that didn't help. I really don't know what topic fits best. I am not at all tech savvy when it come to computers.

Please tell me what this dig output means

linux-client@sec-box:~$ dig @10.0.0.5 corp.project-x-dc.com A

<<>> DiG 9.18.30-0ubuntu0.22.04.2-Ubuntu <<>> @10.0.0.5 corp.project-x-dc.com A

(1 server found)

global options: +cmd

Got answer:

->>HEADER<<- opcode: QUERY, status: NOERROR, id: 39764

flags: qr aa rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 1

OPT PSEUDOSECTION:

EDNS: version: 0, flags:; udp: 4000

QUESTION SECTION:

corp.project-x-dc.com. IN A

AUTHORITY SECTION:

corp.project-x-dc.com. 3600 IN SOA win-2ags2aotevu.corp.project-x-dc.com. hostmaster. 16 900 600 86400 3600

Query time: 1 msec

SERVER: 10.0.0.5#53(10.0.0.5) (UDP)

WHEN: Sat May 24 16:33:05 CDT 2025

MSG SIZE rcvd: 112