Firefox Community Forum

Over the past 3-4 weeks, everytime Windows pushes an update, it switches my default browser (Firefox) to Microsoft Edge.

I have spoken, at length, with Microsoft about why this is happening and how to prevent it. Ultimately, their final response is that Microsoft is going to switch my default browser to Edge with every update.

First, I´d like help to find a way to block this from happening without having to just stop all Windows updates.

Second, Years ago, Microsoft lost a lawsuit because of the monopoly when they forced everyone to use their Internet Explorer, but now, it seems that they´ve just decided to ignore that ruling. Can anyone tell me which EU organization I should file a complaint with?

Hi,

I have noticed that quite often web sites are not opening the first time and FF reports broken connection. Refreshing or trying the second time helps - sites open very quickly.

What may be the problem?

I am using the most recent version on Windows 11 24H2. This behavior appeared about a week ago. I have reinstalled FF but it didn't improve anything.

Thanks!

RoBoform sent me a notification that my master password may have been compromised and advising me to change my master password. I did change my master password, and now RoBoform won't accept either my old or new master password, so the app becomes unusable. How can I fix this?

It won't let me connect to websites due to "Did Not Connect: Potential Security Issue" However, I am certain that it's a mistake, because the websites that I'm unable to connect to are https://web.whatsapp.com/ https://www.instagram.com/ and other trusted websites. For youtube it shows that I'm offline, although I'm connected to the internet. This problem may be due to recent issues related to my internet provider and/or router, because I also have issues with discord app as well as some game clients(Jagex, Blizzard, for example).

hi in a new win 10 instal most text incl Fire Fox text is made up of letters [font] that are made of thin and thick lines [in the same letter]

i dont know if its a strange font or another problem, i have copied all "font" setting from my other pc where i dont have the problem.

also i cant get spell check to work here dsespite turning it on

its very distracting, would be very gratefull for any suggestones if any one can 

help thanks

If adblockers are removed for this particular website" \\Soundarya Lahari All Shlokas Meaning & The Result of Chanting, Worshiping – KannadaTimes.pdf" I can download the content

I have just completed migrating my files and settings from my (not so) old windows 10 desktop computer to my windows 11 laptop. Everything seems to have gone ok, except that the Firefox bookmarks were installed and only work in the private browsing window. When I start Firefox normally, the window that opens does not have the bookmarks, and even if I enter a web address manually in this window, it will not connect. I can choose "New window" in the drop down menu and that window will have the bookmarks, but still will not connect. The only way to get the bookmarks and also be able to connect to the internet is to choose "New private window" from the drop down menu. The problem with that is that there have been occasions when I have had a need to examine my browsing history, which I can't do since Firefox doesn't save the history when in private window mode. I have tried the procedure to sync bookmarks, history, etc., but the procedure is somewhat confusing and didn't work for me. Can you simplify the procedure for me? Thanks, John Blakley

Spinning circle when attempting to view a news articles. Tried other browsers and they all work Ok. My issue it seems with the FireFox browser. Thank you for any help.

Kevin

Hi, I've been using tab groups for a while and i had some pretty important tabs save there. I wanted to know if they get deleted after a while or not, Because all of mine suddenly disappeared. And also is there anyway to get them back?

On all our computers it seems impossible to sign into Outlook...several laptops and 3 desktop...even a new Apple device. Enter your email address and then taken to the next page (see attachment). sign in works with Edge! This has been happening for maybe a month. Very frustrating! NEVER opens the next security window, the 'spots' just keep moving forever...selecting "Back" just repeats the cycle.

Can the notification for upgrading be controlled on ver 143 on linux. It keeps appearing and as a user I should be able to silience or have it notify me at a period I prefer instead of interrupting browsing.

Using version 143 PIP does not work on different workspaces. If I open PIP the PIP only remains on the desktop that FF is on and the PIP disappears on othe workspaces.

The issue started about one week ago (today is 10/11/25). When I wanted to print while in Firefox browser, the print never executed. Instead the screen froze as did the browser. I had to do some experimenting to use my pointer and open a different browser. Yes - besides the pointer being frozen (all that showed was an hourglass) my keyboard was also frozen. When I finally opened a different browser and printed the same item, no problem. I had to close Firefox to be able to fully use my laptop again. I searched the solutions and none had an effect. Firefox would still freeze/hang/lock up when trying to print. The browser is up to date.

In one of my Firefox installs, the Profiler automatically starts recording every time I open Firefox. There's a button on the right that looks like a speedometer and it is blue until I tell it to stop. Then it is taskbar button color.

Profiler instructions at https://profiler.firefox.com/docs/#/./guide-removing-profiler say to simply drag this button off the toolbar and it will stop record. On restart, it's back on the toolbar, and it's recording.

I have tried refreshing Firefox. Doesn't help.

I have tried uninstalling and reinstalling Firefox, and then setting up a new profile. Doesn't help.

I have tried deleting prefs.js. Doesn't help.

I have tried opening up the developer console, opening settings, and unchecking "performance." Doesn't help.

I searched the registry and found a key called MOZ_ENABLE_PROFILER (iirc, something like that). I set it to zero. Doesn't help. I then deleted the key entirely. Doesn't help.

How do I get rid of this thing? It must be a registry setting of some kind, as it appears in whatever Windows account I open Firefox from, but I can't find it. It is deeply frustrating as the computer it is happening on is my oldest computer, and I don't want a recorder running in addition to Firefox.