Firefox Community Forum

Home Internet speed via cable 500 Mbps. When checking the Internet speed through the Firefox browser (version 133.0.3), incoming and outgoing about 250 Mbps. That is, the browser cuts the speed twice. When checking the speed through Google Chrome (version 145.0.7632.160), the Internet speed is about the declared 500 Mbps. Please help solve the problem with Internet speed through the Firefox browser.

Ich habe das Problem, dass ich in einer Anwendung in Firfox die Tasten nicht drücken konnte. Also bin ich auf reparieren gegangen. Jetzt habe ich alle meine Einstellungen verloren! Wie komme ich wieder zurück?

1. 1. Steps to reproduce

Open several tabs, in settings, check «ouvrir les fenêtres et onglets précédents», quit firefox.

1. 1. 1. Expected behavior

On startup, Firefox should reopen with the same tabs before shutdown.

1. 1. 1. Actual behavior

Firefox opens with one empty tab. Forcing me to got to «history -> recently closed windows -> restore» everytime I quit Firefox or shutdown the mac.

1. 1. 1. Device & build information

• Device: MacOs Tahoe 26
• Build version: firefox 148.0.2
• First seen version: MacOs Sequoia

1. 1. 1. Notes

Fresh migration from Win 11 to Mac. tabs, passwords, bookmarks, plugins migrated from win to mac. Attachments:

I thought that firefox would be more reliable than google chrome. For some reason, I am having now problems like accessing my youtube account and other things that worked fine before. There are other sites I can no longer access and I am wondering whether that has something to do with your service.

Hi,

I am trying to synchronise my web browser on my phone to my laptop, but when I try to do so using the QR code I get an error saying I need to use a Mozilla app to do it rather than my phone camera app (see attached)

I can’t find anywhere in my Firefox browser settings this app!

Help!!

"i am getting an er00r massage saying 'voise calling is not supported on this browser' whil trying to makea call on fasebook massenger using firefox.i have airedy tried restarting the browser, but it didn`t work. please help me fix this."

I have two separate Firefox accounts, with separate emails to log in and their own sets of bookmarks, passwords, etc. I want to merge all the data from both of those into a single profile of a single account under just one of the emails.

I'm pretty sure I've done this before, by: 1. Logging into account A and syncing. 2. Logging out of account A without deleting data. 3. Logging into account B and syncing. With the result that account B now contains all its original data plus all the data from account A.

But when I just tried to do this process now, at the point of logging in to account B I got the error "Account limit reached for this profile. This profile was previously synced to a different account. To keep your data organised and secure, each Firefox profile can only be synchronised to one account. To sign in using [account B], create a new profile."

I don't want to have separate profiles with the data from accounts A and B, I want it all merged into the same profile. How can I achieve this?

https://1drv.ms/x/c/b995e0ec7736c180/IQALH00OXltRS5FH4UxpgpA5ATOjGo0hRxTtCNWLZ-opvds?e=4%3a00477a01e3044a6b9f8485f4254c206a&sharingv2=true&fromShare=true&at=9

I don't see the suggestions when I'm typing. It was the most visited site by me and firefox was autofilling it. Now I can see there's nothing in my history like it is the first time I use firefox. I haven't changed anything in firefox settings or system files etc. It's just got deleted. I'm a MAC user

Hi Team,

I am having issues logging in to my Firefox account to sync the browser.

"This profile was previously synced to a different account

To keep your data organized and secure, each Firefox profile can only be synced to one account. To sign in using [email removed]@aftc.co, create a new profile."

After a recent change the browser scroll always goes to the bottom of the page. Before it was always at the top of the page. I found no way in Firefox to reset this function.

Firefox will only start if I sign in as an administrator. It doesn't connect to the internet, and I can't get to the help screen. I did a refresh but that hasn't help. If I uninstall and then reinstall a new copy correct the problem? How do I save and reinstall my bookmarks and settings? I love Firefox and prefer it over other browsers. But I need to fix it and any help you provide will be very much appreciated. Thank you!

I'm using Firefox as my default browser, and I saw a link preview for YouTube (on tumblr, if it matters) that displayed the message 'Your browser is deprecated. Please upgrade' instead of the actual video title. What does this mean?

Recently I've had this issue (on reddit) where after I expand a video in the feed, and start scrolling, all the visuals freeze.

I know it's only the visuals, because I can still interact with the website (usually unexpand the video, or pause it) with the image still frozen and audio still playing.

I can fix it by tabbing firefox down, and then up again. While researching I found the profiler, and finally managed to capture the moment it happened.

I'm no stranger to technical stuff but it's a loooot of data to process, I did a "clean" profile recording as well where I did the same action and where it didn't freeze, and I can't really make heads or tails out of what the issue is.

The recording managed to capture the phenomenon and I only clicked twice during that period, to expand two reddit expando videos, the second one is what caused the issue when scrolling. The only thing I see is a spike in memory usage

Not sure if I can (or should) upload the profile recording here or what, but it's been bugging me a lot.

It's pretty tricky to replicate because it seems to be random when and what triggers it, even expanding the same videos doesn't replicate it. Sometimes I go days without it happening, sometimes it happens 6 times in a single session.

I've added some screenshots of various views of the profiler/stack data.

I have an Nvidia RTX 5070ti GPU, hardware acceleration is on, AMD Ryzen 7 9800X3D processor.

I think I might have enabled some rendering settings in about:config, maybe it's related to that but I don't remember exactly what.

Maybe it's due to some windows "game optimisation" or the GPU and CPU-GPU fighting?

I have no problems watching videos while playing games or anything though.

Hello Mozilla Firefox Support,

I am experiencing an issue with my Firefox browser where my Firefox home page appears very blurry. This has raised some concerns for me about whether something may be wrong with my browser or if my Firefox security may have been compromised.

I would appreciate it if you could help look into this issue or provide guidance on what might be causing the blurry display on my home page. I want to make sure my browser is secure and functioning properly.

Please let me know if there are any troubleshooting steps I should follow to resolve this problem or to verify that my Firefox browser has not been compromised.

Thank you for your assistance.