Load scripts in internal browser windows

[sdavidg]

Is it possible to load scripts in internal browser windows? For example, in the debugger iframe:

[xiaoxiaoflood]

userChromeJS works normally in every window and frame except Browser Toolbox. Because Browser Toolbox actually runs over a different profile, it's kinda independent. In order run things in Browser Toolbox, you need to copy your chrome folder into the profile used by Browser Toolbox, that is, <your_profile_folder>/chrome_debugger_profile/.

You can test it by installing StyloaiX and creating this style:

* {
  color: red;
}

If you copy your chrome folder (including this style) to chrome_debugger_profile and restart Firefox, Browser Toolbox will be styled in red.

[xiaoxiaoflood]

If you're talking about tab DevTools, just use // @include about:devtools-toolbox in the script. Example:

// ==UserScript==
// @name            consoledev
// @author          xiaoxiaoflood
// @include         about:devtools-toolbox
// ==/UserScript==

console.log('hi');

Of course, console.log runs in browser context, not in tab context, so you'll only find the log in Browser Console (Ctrl+Shift+J).

[sdavidg]

This was what I was looking for, a way to modify certain elements of the debugger without the need to create an extension.

Thank you so much