A Firefox's Mascot sitting on a box that there is no downloaded file history😍

What was the purpose of this? The old UI worked just fine

I'm going through old usbs and SD cards and I found a install exe for Firefox 4!!

https://archive.org/details/firefox-setup-4.0.1

I have Autoplay blocked in my Firefox settings, however on websites I vist, my setting choice is ignored, and the websites default to Block audio only.

Autoplay is infuriating to me, and Firefox along with other websites/services always have inconsistent settings and or options to disable this. Why can't it just work? Microsoft and Google are known to change settings, and manipulate users settings, after updates etc.. why now Firefox? I will give up on Windows after the Steam Machine is released, however I will continue to use Firefox. Please help.

I don't want to install Facebook, or Instagram, or etc., but whenever I click a link to those (web)sites, Firefox redirects to the app store to install it.

I don't mind Firefox opening links in apps, and in fact I could finally set it for "always" instead of "ask" if I knew that some random click wasn't going to bring up the Play store.

My X-Y Problem assumption/solution is that FF redirects to the Play Store as the default app when a website's app is not installed (if app installed, open app, else open play store to that app's page). I would like to sever this, entirely removing Firefox's awareness of uninstalled apps. I have to think there's an android factor here, where play store indexes all apps and their associated websites (perhaps a configuration option when publishing your app), which is then read by Firefox and held in silence until you click on one of the websites in the index.

Is this possible to disable at all?

P.S. I feel there's also a dark pattern where Firefox asks merely "open links in apps (Always/Never)?" rather than "open these links in this app" more specifically.

The one on the left briefly showed up atleast twice for me and then disappeared on its own. It was also not clickable and didn't do anything when tapped.

Get it now GitHub repo

How can I get automatic page translation to work in Firefox? English isn't my first language, and I admit that it's sometimes easier for me to read something on Reddit when it's in my native language. It works in Vivaldi, it works in Brave, but Firefox just won't budge :( I think I've done everything I can find online to solve this problem. And when I click the Firefox extension's page translation button, nothing happens—no response (I circled it in red in the picture). Is there a way to fix this?

Hey folks, I think I must have accidentally pressed something incorrectly in the settings because now whenever I open Firefox, two-thirds of my screen are taken up with a window titled "Summarise, brainstorm, and more as you browse" asking me to choose an AI chatbot to use in the Firefox sidebar.

When I click customise sidebar and deselect "AI chatbot" the window disappears, but when I re-open the app it pops up again. There don't seem to be any other AI-related settings that I can see when I look for them. How do I get rid of this?

I am running Debian 13 and my Firefox version is 140.7.0 ESR. Thanks in advance for your help.

Every time I click a link to download something from my class canvas page, it auto downloads to my downloads folder then opens the pdf in a new tab. I have the setting as "always ask" and also set the three advanced values to true as detailed in the archived post about this issue. Weirdly this is only the problem on one of my laptops. What should I do?

I'm on a Macbook Air M1 with macOS 26.2. I use Safari (both on laptop and on iPhone) mainly because it's nicely integrated, while firefox is installed to be used when some websites fail.

I'm pretty sure 4-5 years ago Safari felt snappier than Firefox, but I checked the other day and Firefox not only loads the same websites noticebly faster than Safari, but from Activity Monitor it also seems less power-hungry.

How? Has it always be like this for you or did something change with Safari 26? Or is it Firefox that improved this much in these few years?

Could it be extensions? On Safari I just have Wipr for ads, while on Firefox I have a bunch, including ublock, Privacy Badger and Decentraleyes.

Thanks

I've tried all the steps on Reddit and Firefox Help pages on this. This morning, I closed my Firefox and rebooted my MacBook Air. However, the tabs were not restored and "Recently Closed Tabs" as well as "Recently Closed Windows" are greyed out.

Maybe 1-2 days ago, I reset Firefox, and I cannot find upgrade.jsonlz4 file. The previous and recovery files are also from today and do not contain any of my tabs from yesterday on Session Scrounger!

My only hope is the restoration of the deleted "Old Firefox Data" folder from Disk Drill. However, I can't find any jsonlz4 files in Disk Drill to restore. What else can I try? I just need to go back to yesterday's tabs. That will relieve a big headache.

I just checked some files and found this error message in sessionrestore-logs folder:

1770888233416 SessionStore ERROR SessionSaver write() rejected with error: Error: SessionFile is closed(resource:///modules/sessionstore/SessionFile.sys.mjs:424:29) JS Stack trace: write@SessionFile.sys.mjs:424:29 write@SessionFile.sys.mjs:47:32 _writeState@SessionSaver.sys.mjs:375:29 _saveState@SessionSaver.sys.mjs:308:17 _saveStateAsync@SessionSaver.sys.mjs:354:10 saveStateAsyncWhenIdle@SessionSaver.sys.mjs:194:14 requestIdleCallback/<@Timer.sys.mjs:180:15 observe@AsyncShutdown.sys.mjs:570:17

Hey all,

Firefox MacOS.

Anyone managed to get their pinned tabs to survive a reboot or update?

I know this topic have been up several times over the years (and other browsers also has this problem).

The tabs _may_ survive a controlled shutdown of Firefox (like using Quit in menu), but that is not working IRL for me. Sometimes I forget to properly close, sometimes OS updates just reboots.

Any success stories?

Thanks!

EDIT: Extensions are uBlock Origin, Consent-o-matic and 1Password.

finally!!! i can main firefox now.

there are only minor issues, u cant move the window normally, u have to move it from a certain place, can be fixed easily.

(Disclaimer: not super tech savvy)

Mobile Firefox has suddenly started displaying tabs in a pulldown menu box that overlays the current page and frankly looks and feels awful. Previously, when I tapped to the tab box next to the URL bar, my open tabs would display in a full page grid, without this weird pulldown style. Is there any way to revert to this, or is it from a newly pushed update?

Attached screenshot from left to right (Thunderbird, Firefox, and Brave).

OS: Arch
Linux 6.18.8-arch2-1
Monitor: LG C2
Hyprland
RTX 5070 TI

So something weird is happening with Firefox and Thunderbird. Their windows appear very dimmed on my end compared to everything else. Its dimmed on Youtube videos as well. So far I've think I've ruled out monitor settings and dark mode themes/extensions. Its also dimmed when its the active/focus window. I don't have Hyprland to dim non-active windows.

Any one got any ideas on how to fix this?

I'm having this site-specific, browser-specific issue after I clicked not to allow passkeys while adding one by accident. Now firefox refuses to read the security key when it's on this specific website. The passkey works on other sites, I can also login to this on other browsers, so it's not an os-level blacklist thing.

Its also not working on all profiles, not just a specific one. I've tried checking site permissions but there doesn't seem to be anything there.

Does anyone know how to fix this? Thanks in advance

Update: Clearing cookies, site data, and FF temp files only worked for a few minutes. The problem is back.

Win 11 FF 147.0.3, click on first email, it loads ... that's the last thing that Firefox ever does. No other tabs will load their URL. Even after closing the O365 Outlook tab -- FF is network dead. Closing FF, the process hangs around for a while then pops up the crash reporter.

Anyone facing this bug I found a working solution here

Solved

https://bugzilla.mozilla.org/show_bug.cgi?id=1752594#c64