Userscripts.org

OGame Alarm, sends email and audio alarm when attacked. Plus audio alarm for messages and espionage. Version : 3.4 (02/08/2013)

Like labels? Like folders? LabelLinks4Gmail allows you to label your labels as well as your emails, combining the best of both worlds.

Show/hide the header, footer and sidebar tabs on iGoogle to save space! Perfect for small screens or netbooks!

Turn plain text links into real clikable links. Attempts to catch links like google.com. Doesn't linkify emails. Edited by JoeSimmons.

Shows the number of unread Gmail messages in the FavIcon in your Firefox tab.

Makes "mailto" links open in your favorite web-based email account, instead of a pop-3 client (like Outlook, Eudora, Thunderbird, etc.) Supports Gmail, Yahoo Mail, and Google Apps Mail. [UPDATED Dec 2011]

Gmail + "Cloud Computing" = Gmail 3.0. Use Gmail to increase your online productivity. G3.0 (jee Three pee ohh) New Video.

Remove the (irrelevant) ads sidebar from Gmail message view allowing more width for the actual message.

Adds icons for Mail, Profile, Favourites, Scout, Interestingness, DNA, and the user's photo archive next to usernames in forums and on individual photo pages. It also allows you to send Flickr Mails without leaving the current page you are on.

Totals the installs, comments and fans on userscripts profiles.

Adds a nice touch to your Gmail account. [UPDATED]

Quickly create disposable email addresses on any web site

Style for Gmail2 inspired by Google Dark Blue Web Search

Adds functionality during message composition to support multiple from addresses. I've begun internationalization. Any translations would be helpful.

Add a "Reply" and "Forward" button to Gmail's interface. (Applies to lastest email thread only)

[v0.53] Automatically skips any sponsored links (and optionally tips) detected in the Gmail Web Clips feed. Also optionally hides the sidebar that includes adverts when viewing an email thread.

Cleaner version of Windows Live Mail

Quickly post any page to common online services

Forces all mailto links to open in GMail

Replace GMail classic superstars (which you can enable in GMail labs settings) by meaningful icons (place/dollar/sport/etc.) so you can quickly retrieve your emails by topic.

Adds some options to help manage your Flickr mailbox. Including "Mark all as read" and delete all Notification emails, such as "you are x's newest contact" and Group Invitations, and also a "Nuke mailbox" function, that deletes all your mails

Lets admins delete images from a group pool with 1 click, also lets you delete all a users images from the pool at once + also allows you to email + optionally ban or kick a user at the same time.

Disable Gmail's "Consider including" email recipient recommendation functionality (aka "Add: [Some person]"

mail quotes color coding (each quote level will have its own color)

Adds search functionality to Outlook Web Access

Shows all image attachments in original size instead of thumbnails - by Amish Mehta

Stops hotmail redirecting you to msn when you sign out

Automatically login to Yahoo!Mail

Secure the Connection on: Excite, Yahoo, Gmail, Microsoft Passport. (Add any site to the Included pages list for it to be automatically switch to secure mode as well)

Finds information from Facebook, Myspace, Yahoo Messenger, Google Profiles, Picasa, etc. for all e-mail addresses found in a page and displays them on mouse-over.