Customize still does not work after 29.0.1 update. Addon bar still appears in toolbar list, and menu cannot be customized. All I did was install a theme.
Theme installed in v29.0.0 was LavaFox v2 (https://addons.mozilla.org/en-US/firefox/addon/lavafox-v1/?src=cb-dl-users). Installing this theme destroyed customization capabilities in v29.0 of Firefox, and installed the Addon bar. Removed the theme, but Addon bar remains, along with destroyed customization capabilities.
Todas as respostas (1)
LAST RESORT ! !
Reset Firefox
Load in LavaFox only and see if there is a problem. Then reload your other
add-ons a few at a time. If everything loads in, Great ! ! If not, then you know
where the problem is.