When X-notifier tries to login, third-party cookies should be allowed in Firefox.

If not, X-notifier cannot login.

You can change this settings in Firefox.

 Options -> Privacy & Security ->  Enhanced Tracking Protection -> Custom

 Uncheck "Cookies"

 Or  select "Cookies from unvisited websites"

However, this is less secure way. I recommend to use X-notifier Neo.

Recently Gmail updated their login page.

It is more complicated than the previous page.

I could not find a way to simulate user login in X-notifier.

(Maybe it is what google wants)

In future update of X-notifier, Gmail script will be dropped.

If you need Gmail notification, try to use X-notifier Neo.

Firefox : https://addons.mozilla.org/firefox/addon/xnotifier-neo/

Chrome : https://chrome.google.com/webstore/detail/x-notifier/pheccebhjjlenlidbn…

--- Added in 2017-05-04 -------------------------------

I found a way to bypass Gmail's new login page.

It is applied in X-notifier 4.0.3.

However, I still recommend to use X-notifier Neo instead of X-notifier.

--- Added in 2019-06-11 -------------------------------

Gmail login is not possible again.

Firefox is preparing huge changes in its internal structure.

https://blog.mozilla.org/addons/2015/08/21/the-future-of-developing-fir…

Becuase of these changes, X-notifier for Firefox cannot keep current features.

Current version is based on XUL/XPCOM. It will be deprecated near future.

It is recommended to use WebExtension API.

It is nearly same as Chrome Extension API.

In short, next version of X-notifier for Firefox(X-notifier 4.0) will be based on WebExtension API.

It will be nearly same as X-notifier for Chrome.

Current setting are not shared with X-notifier 4.0.

Please use export/import function before you update to 4.0.

--- Added in 2016-09-08 -------------------------------

X-notifier 4.0 could not pass review process of AMO.

This is because of 'eval' function which is used to load userscript.

It means that you cannot use userscript in X-notifier 4.0 for Firefox.

I recommend to use X-notifer Neo.

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

--- Added in 2016-12-01 -------------------------------

If you want to stick to 3.5.23,

1. In Firefox's Add-ons Manager -> X-notifier -> More -> Set 'Automatic Update' to 'Off'

2. Install 3.5.23 from here https://addons.mozilla.org/en-US/firefox/addon/xnotifier/versions/

This version will stop working in the future according to Firefox team's plan.

Strength	More secure Easy to use Message preview Message management (Mark as read, Report spam, Delete)	More convenient Support multiple login More cusomizable options Support user scripts
Login	Detect user's login automatically	Auto login
Password	Not saved	Saved
Supported sites	Gmail, iCloud mail, Hotmail, Yahoo mail, Aol	Gmail, Hotmail, Yahoo mail, Aol + Other sites with user scripts

Each version of X-notifier has different features.

I could not include all features in one version because security and convenience is not compatible.

Please use the suitable version for you.

X-notifier is back to Chrome Web Store with different style.

This is whole new version of X-notifier.

Features
- detect login automatically
- don't need to save password
- preview messages
- manage unread mails in one place
- support gmail multiple login

https://chrome.google.com/webstore/detail/x-notifier/pheccebhjjlenlidbn…

X-notifier was blocked from Chrome Web Store.

I am trying to find the reason.

Until then, you can download X-notifier for Chrome here.

http://xnotifier.tobwithu.com/cr/install.php

Gmail  2-step verification was updated again.

Please update to the latest version if you have problem with Gmail.

http://xnotifier.tobwithu.com/history.php

Recently, gmail has updated login process.

This is fixed in the latest version of X-notifier.

You can get it here.

http://xnotifier.tobwithu.com/history.php

X-notifier 3.3a has a lot of new features.
Please test it before the release.

You can get it here.
http://xnotifier.tobwithu.com/downloads/ff/xnotifier3.3a.xpi

What's new

• Don't have to save password
  (http://xnotifier.tobwithu.com/dp/node/69)
  Leave the password as blank if you don't want to save it.
• Can make account specific bookmark
  (http://xnotifier.tobwithu.com/dp/node/71)
  Right click tab tiltle -> X-notifier -> Bookmark this page
  This will create a bookmark in 'X-notifier' folder
  For example, if you use two gmail accounts, you can create google calendar bookmark for each account.
• Icon change on checking
  (http://xnotifier.tobwithu.com/dp/node/38)
• Change text color in alert window
  (http://xnotifier.tobwithu.com/dp/node/23)
  Set hidden option 'extensions.xnotifier.alertTextStyle' to 'color:black', to change the text as black
• Script update notifier
  (http://xnotifier.tobwithu.com/dp/node/76)
  XN-scripts will notify script update.