XP+:
- Firefox based:
- MyPal 68:
This is a fork of Firefox 68 ported to XP with an updated engine, about on par with Firefox 78 as of posting. This does have some weird changes that can be somewhat easily reverted though. It's a better choice than UXP if you don't need older extensions.
- MyPal 68:
- RT1/UXP Platfom:
These are based off of UXP, or Goanna, the engine powering Pale Moon. There are multiple variants of it maintained by Roytam1. There are more UXP based browsers than the three below, but I don't recommend using them outside of very specific cases. You can check this page for more if you want to try them.
- New Moon 28:
Don't let the 28 fool you, this is basically the master branch of UXP/Pale Moon but compatible with XP. Because of this some versions can be unstable, but you can always try a few releases to see which work the best. It doesn't support webextensions or e10s, so I don't recommend it unless you really like Pale Moon or have a CPU without SSE2 or SSE. I'd consider the speed improvements from e10s a requirement for the modern web.
- Serpent 52:
New Moon if it had the Firefox 52 UI. This should have some webextensions and e10s support, however I haven't tested it in a while.
- Serpent 55:
A still maintained version of what was the original Basilisk browser. This has better (still albeit poor) webextension compatibility and better e10s than Serpent 52. Needs testing though.
- New Moon 28:
- Chromium based:
- Thorium:
Latest Chromium but works on XP. It's the newest working browser engine for XP and Vista. I would consider this more trustworthy than Supermium, however it still uses the closed source progwrp.dll.
!!!!!WARNING!!!!!
Thorium has closed source components, most notably progwrp.dll, the main dll responsible for compatibility with XP/Vista.
- Supermium:
The upstream from Thorium, has less options, but it otherwise the same engine. It is more suspicious in testing though.
!!!!!WARNING!!!!!
Supermium has closed source components, most notably progwrp.dll, the main dll responsible for compatibility with XP/Vista.
- Thorium:
- XP One Core API:
This allows XP to run modern browsers like the progwrp.dll free Windows 7 Thorium release, and r3dfox. It can also allow you to run some other modern stuff, but it can also be buggy. It's a try at your own risk.
On top of XP+
- Vista Extended Kernel:
Just like One Core API, this allows Vista to run modern browsers like the progwrp.dll free Windows 7 Thorium release, and r3dfox. Firefox based browsers will usually crash with a 0xc000005 error at first run but otherwise seem to work. Also just like One Core API, it can be somewhat buggy. It's a try at your own risk.
On top of Vista+
- Firefox based:
- r3dfox:
r3dfox is release Firefox if it never dropped Windows 7 and still had native elements like the scroll bar. I would say it's release quality so it's above 115 ESR browsers now.
- Firefox 115 ESR based browsers:
This includes regular Firefox 115 ESR, Waterfox G6, Mercury 115, Floorp 11, etc. These are all pretty similar, and you can't really go wrong with any of them. Some have more features than others, try them out and pick whichever works the best for you. These are mostly still supported since 115 ESR is still supported. We will have to wait and see what happens with the next ESR.
- r3dfox:
- Chromium based:
- Thorium:
Optimized build of Chromium, new version based off of Supermium. Has some useful features and performance improvements on top of normal Chromium and Supermium. Windows 7 version does not have progwrp.dll.
- Thorium:
