SSL certificate checker plugin for Firefox?

[Udo van den Heuvel]

idefix at riseup.net wrote:
> Quoting "Matej Kovacic" <matej.kovacic at owca.info>:
>> My question is - is there a plugin for Firefox, which saves info about
>> certificate of a website. When user comes back next time, plugin should
  > I am not 100% sure if this is what you are searching for, but maybe you
> may have a look at "Perspectives". You will find informations on [1]

'petname tool'

https://addons.mozilla.org/en-US/firefox/addon/957