Firefox limits Scratch projects to about 23 FPS

samq64

I noticed that starting today, all Scratch projects, even the most simple ones, are running at around 22-24 FPS. TurboWarp is also affected when 60 FPS is off. Maybe this could have been caused by the Firefox 96 update that got installed this morning?

My browser / operating system: Windows NT 10.0 11, Firefox 96.0, No Flash versions detected
Microsoft really should have bumped the Windows version to at least 10.1 on Windows 11

Last edited by samq64 (Jan. 15, 2022 22:08:47)

hiPeeps124816

Wouldn't this be more suitable for BugZilla?

Generation 7: First time you see this? Copy and paste it on top of your signature in the forums and increase generation by 1.

thethethethethethethethethethethethethethethethethethethethethethethethethethethethethethethethethethethethethethethethethethethethethethethe
Specs -
OS: macOS 11.6.4
Browser: Varies, usually Safari 15.3 or Opera GX 83 or Firefox 96
Computer: Late 2013 MacBook Pro 2.4GHz Dual Core Intel Core i5
highlight and shift down arrow

;

hiPeeps124816

Also, Cannot reproduce, I get 26-30FPS on this project (probably my most recent project with an FPS counter).
My browser / operating system: MacOS Macintosh X 10.15 11.6.2, Firefox 96.0, No Flash version detected

Last edited by hiPeeps124816 (Jan. 15, 2022 18:12:05)

Generation 7: First time you see this? Copy and paste it on top of your signature in the forums and increase generation by 1.

thethethethethethethethethethethethethethethethethethethethethethethethethethethethethethethethethethethethethethethethethethethethethethethe
Specs -
OS: macOS 11.6.4
Browser: Varies, usually Safari 15.3 or Opera GX 83 or Firefox 96
Computer: Late 2013 MacBook Pro 2.4GHz Dual Core Intel Core i5
highlight and shift down arrow

;

samq64

hiPeeps124816 wrote:
Also, Cannot reproduce, I get 26-30FPS on this project (probably my most recent project with an FPS counter).
My browser / operating system: MacOS Macintosh X 10.15 11.6.2, Firefox 96.0, No Flash version detected

I'm very confused. Half the time it flickers between 22 and 29 and the rest of the time it just stays 22.

I also have a browser extension FPS and it just says 22.

Last edited by samq64 (Jan. 15, 2022 18:25:28)

-gr

Cannot replicate. I get 27-30 FPS on all projects.
My browser / operating system: Ubuntu Linux Linux Mint, Firefox 96.0, No Flash version detected

-gr: forumer | scratcher | professional exister

1900+ forum posts / 5+ years on Scratch

me on postpercent [broken] / me on github / me on scratch
highlight this text and shift+down arrow to see the rest of my signature

Terms of Use wrote:
4.4 You may only submit user-generated projects that were created with (1) the Scratch website editor or (2) an unmodified copy of the Scratch editor compiled from the source code described in Section 5.3. You may not upload any projects that were created, by you or by anyone else, with a modified version of the Scratch editor.

oh shoot well i broke that rule (i use turbowarp sometimes)

10goto10

samq64 wrote:
After the latest Firefox update, all Scratch projects, even the most simple ones, are running at around 23 FPS. …

I don’t think this is a new problem for Windows 10 using Firefox. I did a little study Nov 2020 and noticed that I was getting about 22 FPS using Firefox but getting about 31 running the same project under Chrome. https://scratch.mit.edu/projects/446446960/

I just ran it now and got the same results.

hiPeeps124816 wrote:
Also, Cannot reproduce, I get 26-30FPS on this project (probably my most recent project with an FPS counter).
My browser / operating system: MacOS Macintosh X 10.15 11.6.2, Firefox 96.0, No Flash version detected

Running your project I also get about 23 under Firefox and about 30 under Chrome (again both using Windows 10).

Do you have an Animate a Name project that you'd like to have added to a studio? Please leave a comment

in this studio.

Flowermanvista

My browser / operating system: Windows NT 10.0, Firefox 96.0, No Flash version detected

10goto10 wrote:
I don’t think this is a new problem for Windows 10 using Firefox. I did a little study Nov 2020 and noticed that I was getting about 22 FPS using Firefox but getting about 31 running the same project under Chrome. https://scratch.mit.edu/projects/446446960/

I'm also on Windows 10 using Firefox and I can't replicate it, that project runs at a constant 30 for me. I can only guess that it's either a browser extension acting up, or some sort of misconfiguration.

Add a SPOOKY SKELETON to your project!

The Scratch 3 Project Save Troubleshooter - find out why your project won't save

ST, Please Add A Warning When A Size Limit Is Exceeded

My Dumb Creations - THE BEST ANIMATION | The Windows 98 Experience (made on Windows 98) | nobody cares about Me… | the2000 Reveals His New Profile Picture | Not Dumb Creations - Ten Years
Ctrl+Shift+Down for more…
Do evil kumquats keep eating your signature? Assert your dominance and eat the evil kumquats. Did you know that kumquats are only about the size of an olive?

10goto10

Flowermanvista wrote:
… I can only guess that it's either a browser extension acting up, or some sort of misconfiguration.

I don’t have any extensions but there’s no way for me to predict what the software vendors have done. It could be something as simple as a video driver option that does not work well with Firefox (and has not worked well on my desktop for a long time.)

But there are at least two of us Windows NT 10 users that have noticed the issue.

Do you have an Animate a Name project that you'd like to have added to a studio? Please leave a comment

in this studio.

Chiroyce

10goto10 wrote:
I don’t think this is a new problem for Windows 10 using Firefox. I did a little study Nov 2020 and noticed that I was getting about 22 FPS using Firefox but getting about 31 running the same project under Chrome. https://scratch.mit.edu/projects/446446960/

Firefox —

Safari —

Tested on the same computer, Vanilla Scratch, no addons/extensions.

Last edited by Chiroyce (Jan. 16, 2022 05:08:50)

April Fools' topics:

— New Buildings in Scratch's headquarters
— Give every Scratcher an M1 MacBook Air
— Scratch should let users edit other Scratchers' projects
— Make a statue for Jeffalo
— Scratch Tech Tips™
— Make a Chiroyce statue emoji

<img src=“x” onerror=“alert('XSS vulnerability discovered')”>

this is a test sentence

10goto10

I did find this GitHub Scratch issue https://github.com/LLK/scratch-render/issues/957 that appears to be related.

A contributor called adroitwhiz says “ Firefox in general appears to be slower than Chrome, and this isn't Scratch's fault. WebGL performance in particular seems to suffer, but most JS stuff performs worse than in Chrome.

If you can provide a specific example project that's particularly laggy in Firefox compared to Chrome, I can try to look into why it's slow and look into the specific parts that are causing the slowdown.”

The person who created the GitHub issue says they were using Win 10 Firefox 94.

There was no follow-up giving a specific example project and the issue was closed a couple of days later.

It does not sound like the Scratch Team is interested in this problem that just happens for some of us and I’ll admit that using Chrome is an easy workaround.

Do you have an Animate a Name project that you'd like to have added to a studio? Please leave a comment

in this studio.

Discuss Scratch