How to make Command-Left Arrow 'go to the start of the current line' rather than 'go back one page' on Firefox

As you may have noticed, this blog is hosted on Blogger under the Blogspot.com domain. One thing that really annoys me with the Post Editor in Blogger is that, when using Firefox, if I try to use the Home key shortcut (Command-Left Arrow), instead of going to the beginning of the line on the text box where I'm editing a post as expected, the browser goes back one page.

This problem occurs because that specific combination of keys (Command-Left Arrow) is configured in Firefox to behave as Going Back one page instead of the usual Mac OS X-like behaviour of Home key.


Luckly, and for every problem that exists in Firefox, there's an extension that is ready to save the day: Keyconfig. It adds the ability to create new or modify existing shortcuts defined by a element. Basically, all you have to do is install the extension and then navigate to the Tools --> Keyconfig, click on the "Back : Command-Left Arrow" entry, then click the Disable button.

In case you're having problems installing the extension, leave a comment here and I'll try to give some help. Enjoy!

Source: Mac OS X Hints