Firefox 137.0, See All New Features, Updates and Fixes

hmm, that would be three points that don't apply at all for me. neither do I have HDR capable monitor and GPU, nor any actual HDR content, nor do I use a browser for watching movies.

Their 4th neither would be using any non-ESR firefox. I do value privacy, and won't ever allow that corporation to steal and trade my private data.

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partev@reddit

those who still use Firefox should seriously consider upgrading to Thunderbird "Pro" and Firefox "Pro"

https://www.techspot.com/news/107366-thunderbird-email-client-venturing-new-pro-tier-commercial.html

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Since when is moving from local application to some remote web service an "upgrade" ? Since there are already so many webmail providers, why should one go to some new one who's openly telling it's collecting and selling all your personal data ? https://www.youtube.com/watch?v=gc8rvV8DDmQ

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partev@reddit

this was meant as a joke.

nobody should be using any Mozilla products.

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metux-its@reddit

Correct.

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metux-its@reddit

Here's the next fun:

The spying-on-their-users group of political activists is setting up a paid groupware service and wants to replace Thunderbird:

https://www.youtube.com/watch?v=bHHI9i41qY8

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metux-its@reddit

Ah, the people who changed from former SW engineers to "a global group of political activists", who now demand the right to collect and sell all your personal data, including every single keystroke you enter into FF, where's your location, anything you surf, you click, you enter.

https://www.youtube.com/watch?v=gc8rvV8DDmQ

Anybody's really using this spyware ?

Distros already start ditching it for good reasons:

https://www.youtube.com/watch?v=eydR2dl60-k

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WesternPrimary4376@reddit

I recently moved to Brave because of this

If a crypto hater like me can use Brave, anyone can

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metux-its@reddit

I really wonder if that corporation finanially surviving this year.

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hearthreddit@reddit

Actually a lot of stuff.

I don't get the progressive roll-out though, like the calculator in the address bar, isn't that something done locally by the browser, why does it need to be rolled out?

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metux-its@reddit

Maybe it's not entirely locally, but one of the things that are collecing your private data ?

https://www.youtube.com/watch?v=gc8rvV8DDmQ

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Emu_commander@reddit

It is to test bugs and problems before rolling it out to everyone

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wtallis@reddit

Progressively rolling out a feature makes sense when it needs to be tested at scale, such as when you're not sure the back-end server infrastructure will be able handle the full load of the entire user base.

There's no such explanation for progressively rolling out a "calculator in the address bar" feature. That's just making your ordinary users into non-consenting beta testers.

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turbotop111@reddit

No, there are many other use cases too, not just scaling back end; something that affects a lot of users should be tested on a small amount of them first just to prevent screwing up everybody elses life and generating many duplicate bug reports.

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determineduncertain@reddit

That’s what the beta channel is for though. And particularly for something like this where the feature being implemented is comparatively trivial.

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Cakeking7878@reddit

Ok but have you considered it’s just a good practice even if it’s deeply silly for this one feature? Why should they break protocol for any feature. If it turns out there’s a platform breaking edge case bug that affects 5% of users in that calculator they didn’t catch, unlikely but still a possibility, it’s just good practice

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determineduncertain@reddit

That’s true for any feature implementation though. Services that require scaling across servers? Sure, that’s logical because user demand determines quality of the service for others and availability more generally. Locally run functionality that does basic math is an eminently solved problem in computing.

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KeyboardG@reddit

The developer of Temporary Containers passed away last year. Mozilla should natively integrate the feature as its a great idea.

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CondiMesmer@reddit

isn't that what private window is for

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Zechariah_B_@reddit

Private window is less contained. Yes, it's also temporary but you can only have one active at once since the data is shared between private windows.

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CondiMesmer@reddit

That seems like a very niche use case for that feature to be mainstreamed.

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Zechariah_B_@reddit

It is. I can't find much use out of a majority of extensions out there too

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tes_kitty@reddit

And this release breaks the userchrome.css again that I use to put the location bar on top and the tabs below.

Every few releases the same thing.

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h2o2@reddit

The git repo has a new version of tabs_on_bottom_v2.css which fixes it.

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tes_kitty@reddit

Someone else posted the keywords I had to change to make it work again on Linux.

Strangely, the userChrome.css I use on my Mac didn't need any changes.

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TheWiseNoob@reddit

Finally, tab groups

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davidy22@reddit

I still remember when tab groups were taken away. Flip floppity, but I liked tab groups so I'm ok with it flopping in this direction

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whosdr@reddit

I'm really looking forward to this. I haven't seen any images or videos of them interacting with vertical tabs though. Has anyone tested this?

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Pay08@reddit

It works with vertical tabs, but they aren't trees, just flat groups.

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whosdr@reddit

That still sounds good to me for the moment. The amount of times I end up opening a dozen tabs on one topic and end up polluting my tab listing..

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Satelllliiiiiteee@reddit

Yeah it works with vertical tabs. It hasn't rolled out to me yet so i had to manually enable browser.tabs.groups.enabled in about:config.

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whosdr@reddit

Ah good to hear! Once the update reaches me, I'll likely do the same.

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Maipmc@reddit

What? For real, no more shitty extensions? Just the same functionality as chrome?

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Walkator@reddit

Yes, I’ve been using it for a while because they were there, but I had to activate it from the configuration and it’s fine, although there was some error, I hope they have solved it.

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jartock@reddit

Tabs grouping is not active by default for everyone. f you want to test it anyway:

In the adress bar enter about:config
browser.tabs.groups.enabled --> True
browser.tabs.groups.smart.enabled --> True

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olikn@reddit

What does browser.tabs.groups.smart.enabled? I am using 136.0.4 and this is not present.

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jartock@reddit

It does enable the new tabs grouping feature.

But this feature is available only in Firefox 137.

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partev@reddit

people still use Firefox?

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Ambitious_Relief_611@reddit

Is it possible to have different profiles like in Safari? I don’t want to make a new email for each profile

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Business_Reindeer910@reddit

what do you exactly mean "like safari"? The ability to use profiles in general? Or it being as seamlessly integrated as safari's seems to be? I am only going by the what i'm reading here: https://support.apple.com/en-us/105100

The major difference seems to be that firefox's profiles have never supported keeping your browser history or other data in each new profile. It is effectively a new browser config.

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Ambitious_Relief_611@reddit

I think the integrated part is what i was after. I just learned that you can go to about:config and enable profiles, but this seems like an experimental feature still?

The container approach seems interesting, I’ll look into it ty

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Business_Reindeer910@reddit

that's likely the very new profile feature as per https://www.ghacks.net/2025/01/20/a-look-at-firefoxs-improved-profiles-manager-that-just-launched/?amp

rather than the profile support that's always existed.

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ScootSchloingo@reddit

Can someone explain what HEVC is to me like I’m an idiot?

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Flynn58@reddit

Newer video codec that should be able to keep the same video quality as older codecs while using less gigabytes (heavily simplified)

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howardhus@reddit

a modern video compression algorithm.

„but i thought we already had that?“

yes we did…

but this one is a big improvement.

in comparison to AVC, HEVC offers from 25% to 50% better data compression at the same level of video quality,

what the other comments are also missing is that hevc is not only the latest and greatest but its widely supported by most modern graphics cards directly on hardware. your nvidia card can en code or decode it directly in seconds.

i can compreas a 7GB movie file (1:50h) in like 2 minutes using my nvidia card.

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SirPookles@reddit

It’s compressed video that retains good quality. It takes less bandwidth to stream the vid.

HVECs interaction with power usage is less clear to me and there seems to be a lot of conflicting info.

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TeutonJon78@reddit

That's always going to depend on having HW accelerated vs SW support for decoding.

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PraetorRU@reddit

It's just a modern video codec, providing better quality of videos with smaller file size. Mostly noticeable on high quality content like 4k videos. Websites like youtube encode original videos with several different codecs and your browser choses the better one when playing it to you. Previosuly firefox on linux couldn't play HEVC videos and had to chose h.264 for example. With this version it finally can play it.

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mythrowawayuhccount@reddit

Ita a way to compress video while keeping its quality high as well.

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JebanuusPisusII@reddit

Did anyone else get fucked up rendering with desktop showing through when scrolling and not working drop downs?

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mikedoth@reddit

Does anyone know why on Android it defaults to DoH DoT and ignores the phones setting?

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38kb_webp@reddit

I've been waiting so long for tab groups. Finally!

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KnowZeroX@reddit

My favorite fix is the android fix, where it finally stops closing tabs as I scroll down the tab list

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Robsteady@reddit

Still not using them anymore.

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p0rc0dd10c4n3@reddit

+1

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p0rc0dd10c4n3@reddit

And here they come, the stupi downvotes. One of the reason why I make everyone I can switch from Firefox: the shitty community/circlejerk around it will finally die.

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whosdr@reddit

There's a lack of context as to why they don't use Firefox.

There's no "I don't use Firefox any more because " or "I won't use Firefox until "

Which leads onto

It doesn't further any kind of discussion.

Except for causing a pointless argument over downvoting, I fail to see the value here.

It's irrelevant to the discussion on these updates.

Nothing was mentioned about the posted changes to Firefox. Replies should at least be on topic.

It's generally bad form to post on an update about just to say you don't even use it.

It's unnecessary. If everyone followed this, the majority of all news would just be people spamming about not using it. That's frankly not useful to anyone.

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