> I usually turn that off (browser.formfill.enable false)

Good, a last resort! :)

> I assume you've ruled out plugins by testing in -safe-mode?

Did it now, problem persists.

> Do you experience phantom key presses with any other program?

No and to be clear, It's happening only if the Chatterbox Sidebar is opened in the sidebar (sic). (i.e. you need a bookmark, like explained here Other CB Clients

When opened directly without bookmark the problem doesn't happen.

For reproduction:

• Open in sidebar!!!
• Talk something like "... test" and wait till it shows up
• Type "..." and hit TAB key to focus on [talk] button
• The content of the input box has automatically expanded to ... test (or something lexically closer in your history) even before hitting RETURN
• No dropdown was shown
• If you repeat the last steps, but with clicking on [talk] without tabbing, the effect will be the same (no dropdown, but completion appears for a second in input before being send)

I'm pushing my collegue to update his FF on his Win Box to test it there later.

update

I just failed to reproduce it in another instance of the same firefox but with another profile.

Giving up now, will just turn off browser.formfill.enable in about:config , I rarely need to repeat myself ;-)

Hi,

Ok, now I can replicate it in the newest 52.0.1 , typing "..." posts "... test"

There is a slightly different version of the bug in 45, when I type "..." and hit enter, nothing gets posted

What a weird firefox bug :)

> Ok, now I can replicate it in the newest 52.0.1 ,

Thanks for your efforts! :)

It's god to know is not just me. ..

Just...

>  bug in 45, when I type "..." and hit enter, nothing gets posted

Careful, the monastery blocks reposts of the same text for 24h (IIRC)

Normally the famous "Whoa, Cowboy! You said that already. Don't 'reload'?" message is shown instead.

But the CB sidebar isn't normal and the feedback is silently swallowed.

Cheers Rolf
_{(addicted to the Perl Programming Language and ☆☆☆☆ :)
Je suis Charlie!}