[Functional] Extensions won't Function in Single Process Mode (XP)

[Half-Modern]

Describe the bug
If browser was launched with "--single-process" command line argument, extensions will stop functioning even if they look "active".
For example - uBlock origin will show "0 blocked" even if it was blocking a lot of things in same website before.

To Reproduce
Steps to reproduce the behavior:
Install an extension that modifies the webpage such as uBlock Origin
Close the browser completely
Add --single-process to the shortcut of Supermium and launch it
See if it works

Expected behavior
This is a bug preserved from the older versions of Chromium. It even stopped working at all with single process for some time. So if it can be fixed, functionality of the browser will be greatly improved on old hardware.
Screenshots

A screenshot showing uBlock Origin's stats page for music.youtube.com, 0% of blocking rate

Desktop (please complete the following information):

• OS: Windows XP Professional SP3
• 122.0.6261.152 R6 (32-bit)

Additional context
Although it was tested on XP, the behaviour should be similar in other versions of Windows.

[Half-Modern]

Ok, that's weird. Now I'm getting crash without any error if I launch the browser in single process mode. So it still needs some fix before it can be used. Also the only extension I'm not getting it to work is uBlock Origin, like it can't activate its blocking engine for some reason (maybe it needs a process of its own?). The other extensions I've tried (Dark Reader, Enhanced-h264ify) worked without any problems. So it could be just uBO specific.

[IDA-RE-things]

Yes, I'm also detected this, but for another extension: Adblock for Youtube. It also wan't work in single-process mode, while seems active button.

Ok, that's weird. Now I'm getting crash without any error if I launch the browser in single process mode.

may be you appeared this already documented bug..: #391
But this appears on exit from browser, and error message box on next start shown.