I am using Conkeror 1.0pre1 and XULRunner 32.0 under Windows 10.0
Pro.

On viewing Google News (news.google.com/news#s_7), the command 'l' to
bring up hint numbers works only the first time I use it.  Thereafter,
I have to resort to the mouse.

Oddly, this represents an improvement.  Previously (Conkeror 1.0pre,
XULRunner 35.0, WINNT), I could not get hint numbers even the first
time.

I can reproduce on gecko 43. These kind of issues of web pages stealing keybindings are very common. One
can normally type M-x follow to work around it. Don't create an issue for every website that steals
keybindings.