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I was working with responsive view mode and noticed that sensor scroll with mouse is broken. I checked on another PC and the problem there too. I don't know how to describe it, but I made a video and uploaded it to a website so you can watch it.

Video link (there might be ads on the site im sorry)

Firefox beta usually works OK but random webpages either take ages to load or even hang indefinitely. Most of the responses I've seen on this subject simply ask for more info re websites, extensions etc but other browsers don't have these problems, so it looks like a core Firefox thing.

I have updated the Firefox to 133.0 (Build #2016056951), hg-24fce2fbde95+GV: 133.0-20241118181856n AS: 133.0. When I open new tab, and open any website, the default is set to "Desktop Mode", how do I reset it to normal default mode?

Firefox consumes almost 2Gb of RAM with only one tab open. I find this surprising, and it's a major performance issue for me.

Do you have an explanation or solutions to reduce this memory overconsumption?

It certainly appears they have, with the left and right padding growing wider. In fact, they both look about twice the size of the top and bottom padding, whereas before I remember them as being about equal. The change was immediately apparent with my home page!

Any particular reason for this?

For a while now i click on a username box and the drop down menu is full of links relating to the site e.g when i use reddit, the username drop down menu is full of links i have copied in the past and usernames from other sites.

I believe there is a memory leak (or memory growth) bug in Firefox 133.0 on Windows 10. It's site-specific. I am trying to login to my account at https://www.ssa.gov/, and it never actually gets to the login prompt. Using the Windows task manager, I can see the RAM usage keeps increasing, until it nears the 12 GB installed RAM capacity, at which time I kill the firefox process. I'd say this is a bug in ssa.gov, except the problem does not occur with the google chrome browser.

To provide further detail, I go to site https://www.ssa.gov/, and click on the "sign in" button. That takes me to the page where you choose the login method (id.me or login.gov) and I choose "id.me". It takes me to the "you are leaving Social Security's website " message, which is still on the ssa.gov website. At that point, firefox memory usage starts to increase, as shown in task manager. The browser never advances to the next page, but main memory usage keeps going up. This goes on for about 30 seconds before I have to kill the firefox process.

I often receive a 403 error when using Firefox Every time, before this happens, I get the unsafe website warning and then the 403 error when I continue anyway

I am using the latest version at the time of writing These errors only occur on my desktop PC I have tried to replicate this issue on both my phone (Android) and another laptop(Windows 11) but all the websites work normally on there.

I have tried the following, none of which have any effect:

• Clearing cookies
• using Troubleshoot mode
• Restarting
• Changing Useragent
• Using "Forget about this site"

The following do fix the issue

• Using a VPN
• Using Google Chrome
• Running Firefox in another profile

Going through the privacy and security tab and reseting all the settings sometimes works but only temporarily

The following are a few websites where the issue occurs

1. https://kdice.com/
2. https://latinitium.com/
3. https://theysaidso.com/
4. https://opensource.org/
5. httpe://obsidian.rocks/

Google Drive says i am offline when i am not. Can move around the site, and it works fine on chrome, but not on firefox. Can also acces sheets just fine, and acces some files through there

tried contacting google, but since it was a firefox specific problem they could not help

After yesterday's update, I'm not able to access files in Google Drive using Firefox on Windows. They're greyed out, and when I try to open one, a pop up informs me "This file can't be opened because you're offline." I'm certainly online, and it works on Chrome (ugh). Anyone else experiencing this?

Cannot Log on to Costco.com site after update to Firefox 133.0 in Win 10 pro on 2 computers. Both are up-to-date with latest software.

Entering valid account and password cause the Costco logon page to freeze for a minute then returns to log on screen with no messages about failure

Same behavior on two computers. Log on to Costco via Microsoft Edge works perfectly (on 2 computers before any trouble shooting ). Logon with Firefox 133.0 works with every other site that I regularly use - Samsclub, Amazon, Yahoo mail, my own mail servers, NYtimes, WashingtonPost, Google, Walmart, and others

Trouble Shooting Steps taken with no change in the problem logon to Costco + Cleaned cache / cookies + Disabled virus protections + Disabled firewall + Stopped all security services + Rebooted + In settings | Privacy & Security: Added Costco.com as Exception for Enhanced Tracking protection + In settings | Privacy & Security: Added Costco.com as Exception - Cookies and Site Date

YouTube only on Firefox has terrible stutter/frame pacing issues, most prevalent when watching 4k/60 content. "Stats for nerds" shows a healthy buffer and minimal dropped frames. This issue is not present when watching local videos or on Microsoft Edge. The issue can be alleviated by watching in 1080p60 but stutter/judder is still present. The issue is not resolved no matter what power or performance options I choose in my laptop's settings. Any help is super appreciated, as I really don't want to open Edge every time I need to use YouTube. Thanks!

Specs: Samsung Galaxybook4 Edge Snapdragon X Elite X1E-84-100 16GB RAM 60 / 120hz screen Firefox Hardware Acceleration on

I am planning to buy a new computer to replace my current one. The new computer will have Windows 11 and the current one Windows 10. I notice the current Thunderbird files are located in C:\Users\(username)\AppData\Roaming\Thunderbird. I backup these files every day. When I install Thunderbird on the new computer, do I copy my backed up files to C:\Users\(username)\AppData\Roaming\Thunderbird BEFORE starting the Thunderbird application on my new computer for the first time? Will Thunderbird be able to locate all of my email accounts as well the current local files? Is there anything that I need to do and/or change? Thanks for your help.

I tried in another browser and Google Drive is online. Not on Firefox since the latest update.

Thanks in advance for any tip to troubleshoot. Internet connection is checked and okay. All the other google products are functioning as expected.

On some websites, namely GMX, the UK Guardian newspaper, Etsy and PatientAccess (there may be others), I cannot sign in using my login details. If I switch to Edge, using the same details, with the same laptop, my login works immediately. This also happens with a second laptop. I have tried clearing cache and cookies, but to no avail. Is there any setting I can change to allow me to sign in or do you have to fix your browser.

The version of Firefox is 133.0. Since installation, I have not changed any Firefox settings.

Best regards

Richard Brown

the following files couldn be attached outlook web Microsoft Outlook in firefox. Its files more 1 MByte. clearing the cache did not solve the problem. Outlook web in Microsoft Edge no problem with attach files Firefox version 133.0 (64-біт)

I am using VPN and have excluded FF using split tunnel, so I enabled Secure DNS in FF with Cloudflare. When I first launch FF, I get a blank page and nothing in the address bar. After that, I can open all webpages just fine. It's only that first page right when launching FF that doesn't work properly.