gecko-dev VS Librefox

You can see how Mozilla tests the compliance of their built-in elements in the Gecko repository (the ok and is assertions are defined in their SimpleTest testing framework). And here's the Web Platform Tests' reflection harness, with data for each built-in element in sibling files, that almost every browser pass.

The source is mirrored on GitHub here: https://github.com/mozilla/gecko-dev

Code search is here: https://searchfox.org/mozilla-central/

Yes. https://github.com/mozilla/gecko-dev/tree/32c74afbb24dce4b5d...

aWheelInput.mDeltaY looks like the increment setting used for this https://github.com/mozilla/gecko-dev/commit/9033e3e1200acfd4b8f8ae024c215b99d12b97bdTried "mousewheel.default.delta_multiplier_y" and "mousewheel.with_control.delta_multiplier_y" without much luck.It may have something to do with https://bugzilla.mozilla.org/show_bug.cgi?id=1138704 although this case is about pinch zoom emulation.

You could add the feature by writing code to support is - https://firefox-source-docs.mozilla.org/setup/index.html

I checked Firefox monorepo, it has over 4x more C++ than Rust.

Are you leaving steps out or is your OP exhaustive? If you just straight up cloned release and that's it, start all over and follow https://firefox-source-docs.mozilla.org/setup/index.html for your OS

Firefox &/or LibreFox

Librefox[1] is a drop in replacement without the antifeatures.

[1] https://github.com/intika/Librefox

See https://github.com/intika/Librefox/issues/43.

Librefox hasn't been updated since 2018, you shouldn't use it.

Librefox has not received an update since December 2018, you are recommending an outdated browser.

A terrible recommendation, Librefox has not received any new updates since December 2018.

I fear this will suffer the same fate as many other privacy "forks". I'll still give it a try.

They clearly mention the reasons in a Gitlab issue.