Why not use Ungoogled Chromium [1] instead? Developer Mode is active forever, and no Google-centric integrations.

[1] https://github.com/Eloston/ungoogled-chromium

> Why not use Ungoogled Chromium [1] instead?

Why not use Firefox instead? Then you've solved the problem for good.

The same restriction applies on Firefox. Sideloaded extensions disappear after every restart. Only Developer Edition allows sideloaded extensions to persist.

> Sideloaded extensions disappear after every restart

No. I have 2-3 extensions installed directly from Github. You can't do that on chrome.

That's a weird way to spell Firefox...

Firefox has a shitload of tracking features integrated if you don't use the Librefox Profile template. If you don't believe this, add an MITM proxy to verify what's happening on the newtab page.

Personal note: From google analytics in the about:addons view that can only be deleted with physical deletion of the profile folder, to digicert's OCSP service and Google Safebrowsing getting all your cookies, to detectportal.firefox.com tracking all your Geolocation data on every restart... these are all reasons for me to not use Firefox anymore.

That is not privacy respecting. It's what I expect from Google, not Mozilla.

It works forever, but every time you launch the browser you get a popup asking you if you know what you are doing.