Here is how you can have Firefox’s JavaScript Console open in a sidebar:

1. Click on the Bookmarks menu and select Manage Bookmarks…
2. Click the New Bookmark toolbar button
3. Enter JavaScript Console as the name
4. Enter chrome://global/content/console.xul as the location
5. Check the Load this bookmark in the sidebar checkbox
6. Click OK

Now you have a bookmark that will open the JS Console in a sidebar!

Both comments and pings are currently closed.