Eclipse Community

Demo image: https://github.com/OwnedByWuigi/UXP/raw/custom-browser/readme/newtab.png

This is just a UXP fork with a better theme and hopefully better JavaScript support, x64 only.

GitHub: https://github.com/OwnedByWuigi/UXP/releases/

This also forks Lun3r (a fork of the RT1 Serpent release), so what is in there is also in here.

KNOWN ISSUES:

YouTube Desktop bitches about "a new browser", YT Mobile works fine however.

New Release!

YT Desktop finally renders properly!

https://github.com/OwnedByWuigi/UXP/releases/tag/v1.3.26

new release soon, (some) upstream firefox extensions now work!

Working on a SSE only release, for i686+, aswell as experimental Win2k support.
Abandoning GitHub too, new commits will be at https://repo.dactyloidae.xyz/dactyloidae/uxp

OFFICIALLY THE FASTEST XUL BROWSER
DACTYLOIDAE 13 "WARP" OUT NOW
https://repo.dactyloidae.xyz/Dactyloidae/UXP/releases/tag/13.0

OwnedByWuigi wrote: *

29 Mar 2026, 12:14

OFFICIALLY THE FASTEST XUL BROWSER

Please post a screencap or two that backs up this. Thanks.

ie, I **AA BB AA NN DD OO NN EE DD** XUL a year or two ago because of how DAMN SLOW they are/were.

I kinda have no plans to even try another XUL without some sort of "reason" and speed would be a reason.

The-10-Pen wrote: *

29 Mar 2026, 17:01

OwnedByWuigi wrote: *

29 Mar 2026, 12:14

OFFICIALLY THE FASTEST XUL BROWSER

Please post a screencap or two that backs up this. Thanks.

I kinda have no plans to even try another XUL without some sort of "reason" and speed would be a reason.

SPEEDOMETER 2.1
Pale Moon 34.1.0 AVX2 - 22.3
Dactyloidae 13.0-pre1.1 SSE2 - 33.7

This is also the first XUL browser to get e10s stable and enabled *by default*, which is also another major pain point, so now one page freezes instead of the whole browser.

YT Polymer loads 3x faster, crashes are less common, etc. Most of these changes will be backported to Eclipse Hydra/Lun3r first, then upstream UXP.

OwnedByWuigi wrote: *

29 Mar 2026, 22:50

SPEEDOMETER 2.1
Pale Moon 34.1.0 AVX2 - 22.3
Dactyloidae 13.0-pre1.1 SSE2 - 33.7

Thanks !!!

Can you also please share the CPU and RAM of the test PC?
And were these tests performed on true hardware? Or a VM?

The-10-Pen wrote: *

30 Mar 2026, 08:53

OwnedByWuigi wrote: *

29 Mar 2026, 22:50

SPEEDOMETER 2.1
Pale Moon 34.1.0 AVX2 - 22.3
Dactyloidae 13.0-pre1.1 SSE2 - 33.7

Thanks !!!

Can you also please share the CPU and RAM of the test PC?
And were these tests performed on true hardware? Or a VM?

ThinkPad T480 - 32GB DDR4, i5 8350U
Real hardware.

Another user tested it on a AMD Athlon 64 X2 (?) and got similar results

I'm afraid that isn't going to be "fast enough" for my usage.

My real hardware is slower and older but scores more than twice as fast on a "competing browser".
The redacted tab is just to hide my email address being shown on that tab.

Slower by 18% or 48% depending on how you count it.
On an e10s browser, it's that 48% that's technically more important, not the "single thread rating" of 18%.

ps - that is not to undermine the endeavor, looks like GREAT WORK and FINALLY somebody coming along that seeks to improve true PERFORMANCE !!!
Just saying that *I* don't gain anything from it on *my* hardware and *my* OS.

The-10-Pen wrote: *

30 Mar 2026, 10:28

I'm afraid that isn't going to be "fast enough" for my usage.

Slower by 18% or 48% depending on how you count it.
On an e10s browser, it's that 48% that's technically more important, not the "single thread rating" of 18%.


2026-03-30_6-08-43.jpg

IMG_20260330_062322.jpg

I'm doing more work to optimise the browser engine even further, I think the only pain points in Speedometer for me is jQuery and React

Keep up the great work!
ps - my Speedometer 2.1 score of 71.0 is *WITH* several extensions also loaded.
My "baseline" (just the browser and some flags/settings changes, no extensions) is close to FOUR-AND-A-HALF times faster.
On a laptop that is older and slower than your test machine. And also 8GB RAM to your 32GB RAM.

Again, GREAT WORK and somebody finally came along to improve PERFORMANCE.
Just that I, as the end user, really has to use what is best for me and my OS.

I was still on XP just a year or two ago.
There comes a point in time where the end user has to ADMIT that they (myself included !!!) is lying to themselves when they (myself included !!!) shout from rooftops on how much "better" (have to include "air quotes") their (myself included !!!) "legacy OS" 'is'. Not to be misread. 10 and 11 *sucks*. But they **CAN** be modified into truly awesome (but don't hold your breath expecting Microsoft to do that for you, lol).


Baseline without any extensions:

OwnedByWuigi wrote: *

30 Mar 2026, 10:40

I'm doing more work to optimise the browser engine even further, I think the only pain points in Speedometer for me is jQuery and React

I can obtain Speedometer 2.1 scores on my older and slower laptop.
But at this stage, I think I'll delay until further optimizations are in place.

If I remember correctly, the "other" UXP browsers that I ran on this older-and-slower only scored in the SINGLE DIGITS.
But I'm not 100% sure on that from memory. That could be the even older and even slower computer used out in the garage.

HELP NEEDED!
Trying to get a macOS build going, and I am stuck.
https://repo.dactyloidae.xyz/Dactyloidae/UXP/issues/5