X-notifier 3.x for Firefox (deprecated)

Please someone could fix Google Plus? It's been a long time that it does not work on any of my computers. Already uninstalled, cleaned cookies, cache and nothing!

"Through its official blog, Mozilla announced that it will be making changes to how Internet browser Firefox will be handling add-ons in the future, with the most important change being Firefox's adoption of the WebExtensions API. ***"

http://www.techtimes.com/articles/78550/20150822/mozilla-says-buh-bye-to...

Everytime I open Firefox I get the X Notifier page (see image) open up in a new tab and it's F#@KING annoying. How do I get rid of this? Thanks.

http://i.imgur.com/XmvUGd3.png

Puzzling Firefox warning

After updating x-notifier on Firefox 40.0 the Add-on list contained a warning:
X-notifier could not be verified for use in Firefox. Proceed with caution.

On the explanation page it states:

https://support.mozilla.org/en-US/kb/add-on-signing-in-firefox?as=u&utm_...

For the last couple of weeks the Script(2015-03-16) for Mail.com has not been working with Firefox.

There is  a new gmail inbox with  a different link (inbox.google.com). Problem is X-Notifier always opens in the old gmail inbox (mail.google.com) and I can't change the link. X-Notifer only provides the option fot choosing a link wih IMAP. For gmail Inbox, it chooses it automatically and user can't change it.

Hello @all..

the script GMX
(without navigator)

works not in Firefox 39 - 42.

Please help, and sorry for my english.

Hi,

It seems that since the update to 3.5.11 the Office365 script has stopped working.  Anyone else experiencing this?  Any fixes?

I am on FF39, Windows 10 (not related to it, been on the Insider Program since last October).

Cheers!

Hey this thing seems to work okay under Windows 10 (64 bit) and firefox. What a nice experience.

(just boasting)

gmx.com script has not been working for the past couple of days, perhaps after firefox v. 40  7/8 updates.