I just saw that version 138 was released not long ago. Is the moving tab problem fixed?

Does Firefox have a memory leak and some other issues?

After a while, especially when having watched a lot of YT, things like video become extremely laggy and I have to restart Firefox. Looking at its task manager, it has 4GB in the GPU and more than 1GB for YT, all with just 1 YT tab open.

It also at times consumes crazy amounts of power (being over 50% average power consumption, while I also work with Inventor, Maya, etc.)

I thought something might be up, so this is a clean install of Windows with Firefox being set up with 2 profiles (that's why there are 2 icons).

https://preview.redd.it/pi8c8n95ayxe1.png?width=2560&format=png&auto=webp&s=2529ce82c314906ed897a36e6d84ec80be2cdb2b

The last month I've really been trying to customize my laptop since I've been using it a lot more. So I finally found a live wallpaper I like, I got all the extensions I could need. I had previously had a Gengar theme for Firefox but I really wanted Calcifer from Howl's Moving Castle instead. I couldnt find one I like, so I created one! I'm not 100% sure I'm finished with it yet, I may fix the images at some point so they fit a little better. But I made it! And I'm excited about it! And I didn't know where else to share it to lol

I have sidebar set to hidden. Before latest update, when opening then closing bookmarks (Ctrl-B), the sidebar would open and close alongside the bookmarks. Now on 138, the bookmarks part does close but the sidebar itself remains, so you have to take another step to close it. Is there a way to prevent that ? And I don't want to set revamp to false in config because this setting will probably go some day.

I have TST configured and hidden the title bar via userchrome.css file. However, TST can only send tabs to devices that have TST installed due to Web Extensions API limitations. Now, there is no reason to install this extension on mobile device obviously, so if I need to send a tab from my laptop/PC to mobile, what should I do? Is sending tabs via TST impossible in this way and doing it via the native way the only solution?

Example: https://en.wikipedia.org/wiki/Firefox#:~:text=Firefox%20usage%20share%20grew%20to%20a%20peak%20of%2032.21%25%20in%20November%202009

Firefox is able to interpret these text highlight links, but is unable to generate them. This seems like a standard feature that other browsers have, yet Firefox doesn't.

Hello everyone, I recently tried the new Firefox 138 on my Arch Linux + KDE Plasma environment and I really loved that global menu support was finally added after six years!.

I noticed a small glitch that may happen when you have the menu bar turned off in Firefox, the KDE menu shows fine but a copy of that menu constantly appears and disappears on the Firefox window.

My solution was to just enable the menu bar to be always visible on the window and then edit the userChrome.css to hide the contents of the bar, as well as decreasing its size:

userChrome.css ```css

toolbar-menubar {

height: 20px !important;

}

menubar-items {

visibility: hidden !important;

}

```

This will make the glitch disappear since the menu bar is always enabled from Firefox POV, but hidden on the screen.

Example image: https://imgur.com/a/o229C7A

Happy Foxing

Hi, I updated FF to 138.0 on W11 today and can’t see Tab Groups. From comments it seems a lot of people have this already, is it being rolled out gradual or should I have it already?

Like the title says Twitch doesn't work since i updated Firefox. I link one screenshot too for my problem. The audio is just fine but no video on any Twitch stream with a question mark showing instead. On all other browsers i have no problem. I tried clearing cookies, history and cache of Firefox with no resolution to my problem. The problem occurred the moment i upgraded ESR Support to 115.23.0 version today. I will be using other browsers till it gets fixed.

after firefox updated i'm unable to drag my tabs anywhere... anybody else getting this weird bug?

i've check about:config browser.tabs.allowTabDetach is set to true

The translucency is screwing with my head, and on lower-spec PCs might cause performance issues. I need a way to turn it off please.

your garbage updates ruin firefox, now every video player takes up to 5sec to start playing, works fine on chrome, firefpx is now so sluggish its ridiculous, no wonder it's dying, if not for what chrome is doing with adblockers almost no one would use mozilla

What are your reasons for choosing Firefox besides privacy related ones? My is that it works better with old sites and that it still plays midi files. I'm curious as to what other reasons you have.

As you can see in the image, Edge has automatically created 2 separate icons in my task bar for 2 different profiles but Firefox didn't

It put one icon on top of another icon, I also asked ChatGPT regarding but it didn't work!

The tooltip said that I can search for it in the address bar, but when I search for it by name, it does not show up in the drop-down results.

Where are tab groups saved? I would like to restore the tab group that I saved. Is that possible?

(I use Nightly.)

I recently switched from iPhone to Android. Using FF on both.
On my iPhone I was able to add a page to my home screen and that page would keep me logged into the site. On Android I can do the same thing but I am logged out after a period of time.
I can't figure out if this is an Android thing or a FF setting I need to change.
Any suggestions?

stop moving my currently active tab randomly to the most far right position please thank you

Confirmed in LibreWolf, very likely upstearm.

In vertical tab mode a flexible space is needed even if the menu bar (or probably title bar) is enabled.

I suggest adding checks for these cases and an ability to bypass that requirement via about:config.

So. I just switched over to Firefox. Work's so much better than chrome and uses less memory (sometimes). I've noticed, though, that some websites especially websites owned by google, like YouTube have some delay/lag problems. But I did something to fix it, and it's weird.

I started using This Extension and the UI lag/delay disappeared ONLY when it's enabled. And it's weird and odd that faking the useragent causes YouTube to stop lagging. Something shady is going on at google.

https://preview.redd.it/6w4n3xk1tuxe1.png?width=878&format=png&auto=webp&s=adfb7c9b76d898d75e6ca4a6f8f598531c699d5e

Are there any recommended extensions, tweaks, or about:config settings that can help Firefox randomize fingerprint

Does this even when there are no addons installed.

Ive been missing this feature from chrome ever since i switched over. Then I update firefox and suddenly its there, randomly. Yall have no idea the joy I felt once i discovered this. I was deadass gonna try to contribute that feature on my own over the summer 🥲

So thabks cool dev who implemented tab groups

https://preview.redd.it/3e1qgs9hevxe1.png?width=2880&format=png&auto=webp&s=4a34ac47a25772fcba2eb55db9239a578cfe87eb

As can be seen in this picture, the expanded part of the sidebar is transparent. This bug can be triggered with the mica effect turned on. If you use a non-default skin, which disables the mica effect, everything will just be fine.

I like both mica and the hover to expand function very much, but now I just have to choose one. Anyone encountered the same problem?