Created attachment 286431 [details] [diff] [review] Patch with bad links commented out. Most of the files referenced in the section on how to find the browser commands to assign new aliases are dangling links. I don't know why; perhaps the code's structure has changed a lot since this section was created. I attach a diff that comments out a lot of pointers to files that no longer exist. I suspect that instead of simply applying this patch, someone should review it, and see if the files have really simply been removed, or whether their contents have migrated elsewhere.
The www.mozilla.org site should no longer host documentation. If there is still a need for this it should be added to MDC. Moving to Mozilla Developer Center product for discussion.