All Products Community Forum

I am running an iMac that is about eight years old.This afternoon my Firefox browser was taken over by a "warning" from "MacOS security center" that I should go to THEIR macOS support site to get my system unfrozen. The number they give is 1-877-xxx-xxxx. I cannot get this intruder to go away, even by restarting the computer.

Since 141 update I have constant problems with youtube. Page does not load at all or loads only partially. Icons on sidebar are broken, youtube logo is black. I tried disabling ublock and greasemonkey but it did not help. Refreshing page multiple times and using ctrl+f5 sometimes helps but issue returns often, every few videos/visits. Clearing cookies helps but only for few hours and then issue returns.

Is it related to WebGPU support that was supposed to be added in 141? Can I disable it somehow?

Prior to the 6/16/25 release, hitting the back button on the three button control on a page with no previous pages would open the home page without closing the current tab. After the update, it closes the tab before opening the home page. This was useful for quickly opening multiple tabs, as well as preventing accidentaly closing a tab. Please revert this change, or make it a setting.

Is it possible to view the contents of two tabs simultaneously? I have been in many situations where it would be very helpful to view two different web pages side-by-side to more easily make comparisons. Opening a new window and viewing them side-by-side is similar but being able to pick two tabs to view in one browser would be a lot faster and easier to control.

I took a look today and I had 237 MB in cookies! This was after clearing the cache of all files. I've only had this (new) machine a couple months.

Short version: Sites have "cookies" from 200kb to as much as 34MB! For many of the sites over 3MB I have no account and have visited them only briefly.

To be clear, I don't care about the space being used. It's trivial. But what the heck is FFox storing and calling it "cookies"? Last I checked, a site was still limited to 4K size cookies and perhaps 50 per domain. So how are we getting to MB+ sized "cookies" per site? Again, the cache was cleared, so what's left aside from trivial cookie files of <4KB?

Desktop; Windows 11; Firefox 139.0.4 64 bit

I got a new PC and tried to import my Firefox bookmarks. But on the right side menu when you click bookmarks, it only show recent ones which actually aren't recent at all. How do you get that selection to show all of the bookmarks instead of recent?

Also I'm still getting a prompt underneath the address box to manage bookmarks and I can't get rid of it. How do I clear that out?

i attached a pic when i put my curser on the firefox icon in my task bar.... i changed my device while ago... previous device show windows not the all tabs... can i fix it... i searched everywhr in settings but i couldnt find any thing related to it....

I am starting to use the new utility which allows me to group tabs. But I would like to see only the name of the group and not the whole list. How can I collapse the list of tabs which belong to a group leaving only the group name shown. Then with a click I should be able to see the corresponding list of tabs if I need it. Saving and closing a group is not a solution, as the group disappears from the Sidebar. Thank you for your help. Best regards Ray Ballisti [edited] @bluewin.ch Switzerland

second time asked pay attention and answer the question!!!!!!!!!!!!!!!!!!!!!!!!!!!! how does one stop private browsing and then when wanted reset back to private simple question now answer

Running Firefox 133.0.3 on Windows 10 22H2

The last week or so, when I try to download my photos from iCloud, Firefox blocks the download, saying it contains a virus or malware. Of course it does not - it's a zip file of screenshots! Running a scan on the folder once unzipped confirms there is nothing malicious in it. Can you fix that please?

I keep getting a message on screen saying "page refuses to load"; I don't know if it's a problem with the search engine or the browser (I have been using DuckDuckGo as my search engine recently). I haven't used Firefox for years now, and have never used it on my own device so I'm still getting to know it.

Netflix says I need the the latest version of firefox. At the top of the screen it says "Firefox is installing components needed to play the audio or video on this page. Please try again later"

As far as I can tell nothing is installing and I need to actually do something to resolve this issue. Unfortunately I don't know what. Please help me resolve this issue.

Hello=)

I am using Firefox v128.2 esr 64bit on big sur 11.7.10..

In firefox there is always this white line on top of the screen when fullscreening a yt video... (but also partial bars in other situations-randomly) (temp workaround : cmd+up arrow . But, whenever you pause or press something it reappears.

Can we please implement a more elegant solution?

Thanks a bunch , dear Mozillians=)

Have an excellent day=)

My Firefox started crashing a lot recently. Dozens of tab crashes within the span of just a minute or two are not uncommon. Sometimes, the entire browser itself crashes. Usually, the reason given is a vague EXCEPTION_ACCESS_VIOLATION_WRITE or EXCEPTION_ACCESS_VIOLATION_READ. I should note that in my case, the crashes affect most of the browsers I use, but they do not crash nearly as often as firefox does.

I've tried using it without any extensions (clean install), and with hardware acceleration disabled. I've run a RAM test also, which showed no issues. Disk check also indicated no issues. I installed windows 10 and even windows 11 on the secondary hard disk, but the issue persisted. I've also tried forcing my discrete/integrated GPU to be used solely as the display adapter, but the crashes still persisted.

When using firefox on ubuntu, the crashes do not happen, strangely. There was only one instance that I noticed the crashes on ubuntu, and that was when I set my discrete graphics card as the exclusive display adapter, from the BIOS settings.

Anyway, nothing really sticks out as the root cause. Wonder if someone is able to decipher anything from the crash reports below https://crash-stats.mozilla.org/report/index/bp-6927a483-6c22-4830-b057-1413e0241104 https://crash-stats.mozilla.org/report/index/bp-42b9b1f5-5820-4ed9-9c52-30c8e0241104 https://crash-stats.mozilla.org/report/index/bp-0b92e804-00e8-4515-9129-3b5db0241104 https://crash-stats.mozilla.org/report/index/bp-d27cdb0b-3e38-4507-925b-09ce30240914 https://crash-stats.mozilla.org/report/index/bp-fa6b0609-ae19-4a66-a81d-078040240911

I used this a lot, but now cannot find it on any toolbar. I've added no software or made any changes in the interim. I was hospitalized from 1/10 to 1/31, and didn't use my computer in that period. I updated Firefox, and still can't find the control.

I have 6 websites that I currently cannot sign into using Firefox. Support tells me to use those two crap browsers Chrome and Edge. I end up using Edge because it is embedded in my computer and I cannot delete. I will not install Chrome and have put on Avast Secure Browser and CClean browser. Both are just Chrome with a new gooey. My Father is also having the same trouble. Most of the sites are for Utilities and rewards programs. Avast is also blocked. Are you aware and working on getting this fixed?