I noticed the following unwanted behaviour (bug) on the latest firefox for linux:
go to youtube.com
click on "trending"
click on any video (the first one for example).
click on the firefox 'go back' button
bug=> the 'go forward' button disappears.
This bug comes for firefox since it also occurs with all plugins disabled.
ps: To reproduce this bug on windows, you can change the user-agent of your firefox to a linux one so that youtube gives you the same page as the one when the bug is present. To do that:
download the 'modify headers' firefox plugin
open the preferences of this plugin
click on select actions->modify
in the first box, type User-Agent.
in the second box, type for example Mozilla/5.0 (compatible; Konqueror/3.3; Linux 2.6.8-gentoo-r3; X11;
click on 'add', and then 'start'.
Don't forget to remove all your firefox cookies, by going to preferences->privacy->remove individual cookies->search for youtube and delete them all.
Is that normal ? Do you experience it too ? Any idea how to prevent this unwanted behaviour from happening ?