[simiones]

Really? Do you install Firefox extensions from apt-get?

[pxc]

It's not unusual to do this in the Nix world.

There are a ton of VSCode extensions in Nixpkgs: https://search.nixos.org/packages?channel=23.05&from=0&size=...

You can use them in combination with the vscode-with-extensions function to create a VSCode package that bundles in whatever extensions you declare: https://nixos.wiki/wiki/Visual_Studio_Code

[Kye]

I haven't used Linux in a while, but I do remember seeing browser extensions in the package manager.

[kiwijamo]

Yes, there are a few that can be installed from the Debian packages.