Firefox Community Forum

If I inadvertently closed a tab, I used to be able to go to the "recently closed tabs" menu and find it. Now, when I click on that link, there's nothing there. I can and do use the show all history tab, but that is much much more cumbersome.

A few days ago, I cleared my caches which may or may not be a factor, but I've done a lot of browsing since then.

Hello,

I'm building custom firmware for a Makerdiary nRF52840 USB dongle using GitHub Actions.

When I tried downloading the generated ZIP file, Firefox blocked it with the warning: "This file contains a virus or malware."

I removed the blocked download rather than overriding Firefox's protection.

The ZIP contains custom `.uf2` firmware for an embedded USB device. The GitHub Actions build passed its validation checks, and an independent ClamAV scan of the original firmware reported 0 infected files. I subsequently built and scanned an updated version, which also passed.

Original blocked build: https://github.com/flips96-art/hid-remapper/actions/runs/39094413639

Latest build: https://github.com/flips96-art/hid-remapper/actions/runs/39096517313

Latest antivirus scan: https://github.com/flips96-art/hid-remapper/actions/runs/39096868117

I understand that a clean ClamAV scan does not guarantee the file is safe.

Could someone help me determine why Firefox classified this download as malware and explain how to submit it for a possible false-positive review without disabling Firefox's security protections?

Thank you!

Hi!

I am using the add on 'sidebery' for vertical tabs and I am so happy about and so gotten used to it! (No, sorry, I don't want to use the built-in option)

Today I updated to FF 157.0 and saw this annoying part in the sidebar (as seen in the image attached)! WTaF? o.O I didn't ask for them to take up space in the sidebar that could fit almost TWO vertical tabs! Can I somehow make it go away? Or do I have to contact the creator of 'sidebery' (which I don't think is the culprit)?

userChrome.css 'trick' with

1. sidebar-header #sidebar-box {

   display: none !important;  

} won't do either.

Thank y'all very much!

I want to use your built in VPN. Every time while I follow instructions the process becomes circular. ie., when asked to click on VPN icon the same dropdown menu appears to activate by clicking on VPN button

Here is a video which would demonstrate it best: https://youtu.be/MpHX4Ep-IMM

These two comparison are made between Firefox 158.0 (64 bit) in Troubleshoot Mode and Brave 1.97.59 (64 bit), on Windows 10, version 22H2. I use the 30MB Big Buck Bunny version on test-videos.co.uk site, Firefox seems able to load the 1MB, or 2MB version pretty smoothly, but higher than that, it starts to stutter, for some reasons I cannot understand.

(Most results I can find online tell me to "disable hardware acceleration", but I have been turning that setting on and off multiple times without seeing any changes)

Ironically, videos on Youtube can load normally without issues. It just seems any embedded videos would behave oddly like this, which I encounter most often on Discord.

Please, I would appreciate any insights. I can provide additional information if needed. Thanks in advance.

So i can not open up a youtube video i click on the thumbnail and nothing happens. Ive been working with chatgpt with this promblem and it still hasnt worked. I have factory rested my whole destop didnt help. it works in troubleshoot mode but not in the main one i had the problem on google chrome and i switched to firefox nothing changed and am frustrated I need help talking with chatgpt for 3 hours didnt work.

When I use Firefox browser to search the web the following always appears in the search bar. How do I stop this from happening? https://khsrchrdr.com/ecrp/?gd=RD1005876&searchsource=58&n=edlyfm4a&q=When+I+search+using+Firefox+ Thanks Roy Ferris 18-10-2026 - Roy@royferris.co.uk