I love editing my PmWiki wiki/blog using the access keys in Firefox. But when I upgraded to Firefox 2.X the access keys didn't work anymore. I found a way to get them working again. While in Firefox 2.X browser:
about:configin URL field
ui.key.contentAccessin Preference Name column
ui.key.contentAccessname and enter "4" in resulting input box.
The access keys will now work while editing PmWiki in Firefox.