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Dear Support Community,

I am writing to report a persistent display issue I have been experiencing on Firefox Android over the past two weeks. The bottom border (including menu and cookie consent elements) is not aligning correctly with the bottom of the screen.

Specifically, there appears to be a vertical offset between the bottom elements and the screen's bottom edge.

I have attached screenshots that demonstrate the misalignment. The bottom border of web pages is not matching the physical border of my phone's screen.

My phone is Pixel 7, Android 15 with the latest updates. Thank you for your assistance.

terryzue terryzue 1/24/25, 10:56 AM

I cannot consistently show an image preview when I hover over a tab, even though I have that function box checked in my general/settings page.

Recently, whenever I access a local TV stations news post and try to read it, I get the pop-up shown in the attachment. Why is it happening and what can I do to eliminate it?

I am getting this error in Firefox when I try to open certain webpages. These same links work in Google Chrome on the same device/connection.

Here's what I've tried:

In windows:

   Reset network settings
   Disabled firewall

In firefox:

   Cleared cache/cookies
   Turned off HTTPS-Only mode
   Turned DNS over HTTPS off
   Renaming cert9.db in profile folder to generate a new one
   Turned off all add-ons
   set network.http.http3.enable to false
   set security.tls.enable_0rtt_data to false

I've noticed that if I leave it on the tab, close firefox, then re-open it. It'll load in this one instance. However if I refresh/click anything on the website it then goes back to the error. I really can't figure out what the problem is

Hi everyone, I’m experiencing some performance and connectivity issues with Mozilla Firefox lately and could use some advice. The browser is becoming slow, especially when opening multiple tabs, and I’m also noticing intermittent connection problems while browsing certain websites.

Here’s a breakdown of the issues I’m facing:

Slow Performance: Firefox takes a long time to load, and scrolling through pages feels laggy at times. Connectivity Problems: Some websites take longer than usual to load, or I get timeouts, even though my internet connection seems fine on other devices. High Resource Usage: Task Manager shows Firefox using a lot of CPU and memory, which could be contributing to the slowness. I’ve tried clearing cache and disabling extensions, but the problem persists. Has anyone faced similar issues? Any suggestions on improving performance or fixing these connectivity problems?

I’m using the latest version of Firefox on Windows 10. Any tips would be greatly appreciated. Thanks in advance!

OLD firefox data is being created automatically if we are deleting its stil get created again in desktop no profile setting found on fixfox browser In sycn option also not account is added.

Hi, I'm trying to find out where (in the code) the app checks the server certificate. I consider myself a programmer (thanks Edsger!) but after some browsing I did not find the way in the repo.

The issue is that in my experience, every time the server cert is changed (Imaps, LetsEncrypt) k9 asks me to validate the new cert. And I have 2 things I want to check: -Another user says he is also using K9 and he's never presented with a cert issue on change -I want to see the possibility of directly accepting the new cert iif stored cert is about to expire, new cert comes from the same authority (root CA) and PK is the same.

Any help in this regard is appreciated! -Carlos

Hello, I just updated Firefox to version 136 on my MacBook Pro. I was playing a 4k YouTube video, and at 16 minutes and 10 seconds in the video froze. If I moved the cursor the pause button and all of that would come up at the bottom, but when I clicked on the option to exit full screen it did not respond. I pressed the escape button and that did get me out of full screen, but the video window did not apply the right formatting. I'll include a screenshot so that you can see what I am talking about. After exiting full screen, if you look at the bottom of the video window, the option to go back to full screen is cut off. Closing Firefox and relaunching it appears to have things working again, at least for now. I thought it would be best to report this just in case it isn't an isolated glitch.

I am new to firefox customization, so I want to understand how to build a custom libnssckbi.so file. I do not want to use the default libnssckbi.so, reason is - I do not want to load the default certificates.

I want to load certain custom certificates, or load firefox with no certificates.

I know the option of using certutils to delete/distrust certificates. But that option is not valid for me, since I can't install a 3rd party tool and use it.

Can please someone explain the steps to write a .so file for firefox.

I am working on Mozilla Firefox 110 (no snap) and Ubuntu 22.04.01 (I cannot upgrade firefox version due to project needs)

The browser doesn't go through the pages as fast as it once did. When I scroll up the page it actually stop. At one time I could speed up or down thru a web site that it fly so fast u could even see the page it went so fast.. not any more. It no actually will stop ..Even when I clear the data out the page will still stop as I scroll up or down. Why does it slow down as it never did before. I hope u can fix this. Also my bank says Firefox is not secure to use for banking online. Google crime. And Microsoft Edge is listed as secure over Firefox.

Hi, I use Firefox all the time, love it. But I have noticed a problem.

If I have say 7 tabs open, none of them doing anything, then go away from my laptop for say 20 minutes, when I come back the fans on the laptop are screaming. Even if it was minimise.

I have a fairly modern laptop Dell GSeries1522, 12th gen processor, 16gb ram, i7.

I have tested this issue using Edge and Chrome with exactly the same tabs open and the laptop is all quiet. I'm on the precipice of moving to Edge. Happy to provide more information. Task Manager now shows FF using 1223.0mb of memory, Edge 466.7mb. They are both in "efficiency mode".

Any help or advice would be great.

Peter Hall Brisbane, Australia.

Can firefox focus on iPhone block inappropriate images on google search?

Can it block sites that I don’t want is should be able to go in with a passcode? Thanks

When ever I try to login to my bank I get a black page with this in the left hand corner. I can not logon. 'type "about:blank" title "Bad Request" status 400 detail "Failed to convert 'userIdEncrypted' with value: " instance "/dias/authenticate"