Same happened to me.
Downgraded Firefox on Ubuntu 16:
apt-cache show firefox | grep Version
sudo apt install firefox=45.0.2+build1-0ubuntu1
sudo apt-mark hold firefox
Next, about:config / xpinstall.signatures.required:=false.
Finally, install 0.3.0.xpi from the website.
There's an alternative addon that installs without a downgrade. But
that one doesn't seem to work.
regards,
Oleh
On Wed, Aug 16, 2017 at 2:58 PM, Marcin Borkowski <[email protected]> wrote:
> Hi all,
>
> the title text says it all. Anybody can confirm that? How to configure
> capture in FF now?
>
> TIA,
>
> --
> Marcin Borkowski
>