Firefox Community Forum

Since the latest version (152.0), right clicking on a file link, select Save As... and with the popup with the filename and saving location being OK just hitting <Enter> doesn't do anything anymore. I now have to specifically click the "Save" button (or use <Alt>+S) to get my file saved. This is highly annoying as my muscle memory gets in the way all the time. Please get the original behavior back. Just found out the same behavior is with file upload.

On Linux, how do I start firefox in a specified profile?

The commandline options `--profile` is used for the "legacy" profile manager, but don't seem to allow to pick a profile with the new profile manager.

Background:

I make use of the new profile manager to seperate work from personal things.

I have enabled the toggle "Select profile when firefox is started" so that I can choose which profile to choose everytime I open firefox.

This is only has an effect when starting a completly new instance of firefox. It does not help when I click a link in another application when I already have firefox running in any profile.

I could easily "fix" this by using a simple script as my default browser and let the script decide that for example `https://*.mycompanysdomain.com` should always be opened in `firefox --profile work` etc, but the commandline does not seem to support

This is a feature idea I had. I hope someone who works on UI design considers it.

1 - Persistent groups

I use vertical tabs, and I like the idea of tab groups, but I never use them because I don't want them to be ephemeral. As a user, if I'm going to be spending time organizing things with this feature, having tab groups disappear after closing all tabs makes me fee like I've wasted my time engaging with the feature. Tab groups have to persist until users manually delete the group. I'd like for groups to persist even if they have no tabs in them. They are categories with a name in which I would like to organize my browsing, but I'm not going to waste time organizing if I'm going to lose everything by closing tabs.

2 - Auto-grouping new & existing tabs by host name (excluding pinned tabs)

When creating a group, I would like a toggle in the group options ui (where you pick the color and name), to make the group a catch all for any tab opened with the same host name (it would auto-add new tabs with the same host, or existing ones at group creation time). As a matter of fact, when creating a tab group by dragging a single tab over another single tab, when both have the same host name, they should auto toggle on the filtering by host name.

I think this feature would get more use with either of the above changes

Alexandre Leduc

Even though I am using Firefox on a Fedora based system, it should not change my startup page back to the Fedora project after every update, especially since I, the user has explicitly selected a different option in the settings after initial setup (Default Firefox homepage). I don't care about the new developments in Fedora enough to break my flow to look at it. This wouldn't be a big problem on a secondary browser, but Firefox is my main browser, I even have an account with which I am posting this, and in that case, changing the startup page to Fedora project after every update without my consent, even though it can be changed back to what I want, is a real problem.

Firefox 153.7.0esr (also affects previous releases) on Linux When I browse websites that have images, and hover to read the title text, Firefox displays the text as white characters on a white background. The only way you can tell that the characters are displayed at all is that sometimes the white character occludes a dark spot in the background or image.

I'd like to change the text colour that Firefox uses to display these title values, so that I can read them.

Attached images:

 img_title.firefox_version.png shows the version of Firefox affected
 img_title.problem.png illustrates the problem using XKCD comic 3322. Note that the
   title is unreadable until it spills off the image and onto my desktop background
 img_title.html.png shows the HTML that generated the title.

Summary While Gemini Deep Research was researching a topic and building a PDF report, Firefox's memory and CPU use shot up and the whole laptop became sluggish. System RAM reached 12 of 13 GB. It came back to normal on its own after the report finished.

What I did 1. Opened gemini.google.com in Firefox. 2. Asked Gemini to research a topic and create a PDF (Deep Research). 3. While the report was being generated, the system slowed down badly.

What I measured - Firefox held about **2.6 GB of GPU (GTT) memory**, which comes out of system RAM on an integrated GPU, and it ran at about **100% CPU**. - Total GPU GTT memory in use reached **5.3 to 6.7 GB**, while normal process memory (RSS) added up to only about 5.4 GB. - System RAM reached about **12 of 13 GB in use**, and the system started swapping. - After the report finished, GTT use dropped to about **0.2 GB** and free RAM went back to about 3.8 GB. - Measured from `/sys/class/drm/card1/device/mem_info_gtt_used` and `drm-memory-gtt` in `/proc/<pid>/fdinfo`.

System - Laptop: Lenovo V15 G4 ABP - CPU/GPU: AMD Ryzen 7 7730U with integrated Radeon graphics (2 GB reserved as VRAM, 16 GB RAM in total) - OS: Ubuntu 26.04.1 LTS, kernel 7.0.0-43, GNOME 50.1 on Wayland - Browser: Firefox 159.0.1 (Flatpak)

Questions 1. Is this expected for Deep Research, or is it a known issue? 2. Is there a setting or workaround (for example turning off hardware acceleration, or switching away from the tab while it generates) that reduces memory use? 3. Has anyone seen the same thing in Chrome, or on other integrated GPUs?

Thanks!

I have noticed that some websites take longer to load in Firefox, even when the internet connection is stable. For users who manage websites, such as Automatic Fitness LLC, (autofitfam.com) consistent browser performance can be important when accessing website dashboards and online tools.

Could browser cache, cookies, extensions, or tracking protection settings affect loading speed? What troubleshooting steps can help improve Firefox performance without losing saved passwords or important browsing data?

Payment methods are present and are offered for autofill, but the autofill never actually happens. The dropdown correctly shows the last 4 digits and expiration date of payment methods.

The dropdown autofill offer closes when I click on one of the payment methods, but the fields aren't actually filled in. Hovering on a payment method in the dropdown does show the method filled in, but the fields revert to empty if I choose any of the options or try to move the cursor elsewhere.

This happens in private windows too with all extensions disabled.

Passwords and logins are autofilled correctly.

I get the error message "Firefox can’t connect to the server at localhost:8090" when I try to connect. All other Internet sites load with no problems.

Any suggestions for a fix will be greatly appreciated.

Hello,

Until about 10-20 hours ago, the Firefox built-in VPN was working fine for me. Suddenly it stopped working and I can no longer enable it.

I have not used up my 50GB monthly limit.

When I try to turn the VPN on, after a few seconds I get this error:

VPN is unavailable Local laws and restrictions limits where you can use VPN

Also, when I check about:config → browser.ipProtection.enabled, I see this response:

{"subscribed":false,"uid":5956457,"maxBytes":"53687091200","limited_bandwidth":true}

Could you please check why the VPN became unavailable even though my data limit is not exhausted?

Thank you.

I am using Firefox (.deb from mozilla, not snap) in ubuntu budgie 26.04. It used ~/.config/mozilla/firefox as its profile root but after I updated to 159.0.1~build1 and clicked on a link in Thunderbird it began to use ~/.mozilla. I closed firefox, renamed that .mozilla directory, and it recreated it. MOZ_LEGACY_HOME is not set, and XDG_CONFIG_HOME is unset.

Is it only me? Thanks for your time.

$ aptitude show firefox Paquete: firefox Versión: 159.0.1~build1 Desarrollador: Mozilla <release@mozilla.com>

$ aptitude show thunderbird Paquete: thunderbird Versión: 2:1snap1-0ubuntu5

~$ stat .mozilla/

File: .mozilla/
Birth: 2026-11-04 14:43:08.656418113 -0300

~$ stat .config/mozilla

File: .config/mozilla
Birth: 2026-05-01 00:15:51.579973605 -0400

about:support: Firefox 159.0.1 (build 20261102144711), distributionID mozilla-deb, Linux 7.0.0-42-generic, Wayland (MOZ_ENABLE_WAYLAND=1). The crash reporter’s data and ping directories point to ~/.mozilla/firefox, even though the profile is in ~/.config/mozilla/firefox.

When I open Firefox 156.0 on Ubuntu > Help > Troubleshoot Mode

Then type medicare.gov, then Health & Drug Plans > Find health & drug plans > (type-in a valid zip code)

It says "ZIP code not found".

The same thing works on Chrome.

This is NOT a sudden issue...it's been like this for years.

I am trying to change my password and now I'm stuck after making my secondary email address my primary email. Then a pop up says something about an email case which I know nothing about. This is the same way that I am locked out of all 5 of my googlia accounts. They would ask me to perform problem solving tasks that I know nothing about. Then googlia tells me lies that I let my emails & passwords get stolen. Now I do not have access to any apps or can update the apps that I do have. Samsung is in aggreement with googlia and will not let me change my samsung with a googlia email that I no longer have. But even if I get this FireFox mistake ironed out. Updates are not going to happen. I have never had an apple phone so I know even a lot less about that operating system. I will never again use a windows operating system. Nothing but bad memories. If this does not manifest into something positive, I'm going to learn how to use the Linux operating system. Thank you for listening.

 NoBones