fortyseven/gm-up-nav

A GreaseMonkey script to move up a level in the current URL using ALT+UP

What the hell is this?

Now that GitHub CoPilot has a full chat interface in VSCode, just for fun I asked it to "write a GreaseMonkey script to navigate up a level of a URL when the user hits ALT+UP".

I found a couple sketchy extensions to restore this ancient browser behavior, but I'm extremely picky about what extensions I install nowadays given the countless security horror stories.

So I gave it a go, not expecting much and it... did a decent job?!

Well, I mean, it needed about 5 minutes of tweaking and testing but it got about 75% of the work done.

Installation

Go find a GreaseMonkey extension (or any of the clones) for your browser, stick this in, and off you go.

This has only been tested with Firefox.

Usage

Literally pressing ALT+UP on any page will navigate you up a level.

For example:

• https://example.com/foo/bar/baz
• https://example.com/foo/bar
• https://example.com/foo
• https://example.com

Worth noting that many pages will redirect you if you hit a URL they don't like, so it will look like the page is just refreshing. Not much I can do about that. (Though I have some ideas...)