Userscripts.org

Original script by DrNick modified by Toby. Font is Bigger And now works on Gmail, Google +, Facebook, Twitter, Opera Mail, Google Search, Bing Search, My Web Search, Atavista Search by Yahoo, Google Maps, Google Translator, Google Books, Mozzill...

Prevents label list - chat list fight in the navigation panel on the left.

Hide the spam-counter in Gmail.

Smaller text (0.85) and labels to the left in message list.

This script improves Google Mail's new look to be more neat and save space with additional keyboard shortcuts (set display density to compact) [all ads & feedback removed]

Auto Hero Adventure

Removes all ads in Gmail, including Web Clips at the top of Inbox. Updated for the most recent Gmail design.

Attaches a simple icon on each building which show level and if upgradeable

just test for my project

When composing an email, automatically selects your "From" address based on the email recipient(s).

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

Gets rid of the 'push this button to log into Gmail again' and the advertisement below to go straight to Gmail home screen.

Displays a small clock in the bottom-left corner of Gmail.

Replace http:// with https:// in the address bar, to make sure you're using the SSL-encrypted version of a page. Only enable for pages that you know are SSL enabled.

Remove/hide all unnecessary elements on Google Sign-In pages

Add random signature to Gmail from quotedb.com

Removes the "No new mail" notice from your empty Gmail inbox

Adds a "Get Link" button which allows you to access and copy the the persistent URL of an email conversation thread in Gmail.

Removes the people/advertisement sidebar when using the Preview Pane labs feature, as well as various other improvements.

Gmail's "Send mail as" feature is great, but for one thing: the From address field is unsorted, making life painful when you have more than a few accounts. This script sorts the list of options in the From field alphabetically, for pure send-as pl...

Adblock for GMail

Everybody is disappointed by gmail's new UI. This small piece of script tries to colorize the new UI to make it a little bit easier to use.

Hides the right hand sidebar in the message view in Gmail for an extra-wide widescreen view.

Add extra emojii to your Gmail chat! Compatible with Firefox, Chrome & Opera =)

This script replaces the display name of the sender and recipient from the sender's expression with your registered expression in your address book.(can work on google chrome and firefox-greasmonky)

Dim Ads for Google Mail

See from your inbox what kind of attachment an email has

Use Ctrl+Shift in Firefox to switch between RTL and LTR modes in gmail

Adds strikethrough button to Gmail rich text editor

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]