Gmelius, pronounced 'Gmail'-'ius' where melius means better in Latin, is a browser extension available for Google Chrome, Mozilla Firefox and Opera that customizes the look and feel of Gmail to the users’ satisfaction. Gmelius gives you the possibility to determine which interface elements you wish to display in your inbox, as well as how you want to use them. Amongst the extension's most popular features are the options to restore the old compose window, to remove all ads, to propose a clean Gmail print style (e.g., no Gmail logo), and to make your Gmail inbox less cluttered and more readable. For a complete list of features, please see below.
Gmelius has been founded in 2012 and is maintained since its creation by Florian Bersier, a PhD candidate at the Oxford Internet Institute, University of Oxford.
Experience Gmail without ads
Focus only on your emails and wipe out the noise added to your inbox by Gmail ads. Gmelius gives you the possibility (i.e. option) to remove all the ads present in Gmail (top, right and bottom). To note that Gmelius does not deactivate the automatic Gmail filtering and scanning system which allows Google to parse for keywords in your emails and then match and serve targeted ads when you browse the Web.
Make Gmail header visible on-demand
Make the Gmail header, that is the logo and search block, auto-expandable on demand and prioritize so the content of your inbox. If you enable this feature, Gmelius will add a "Search" button at the top-left of your inbox that will display/hide the header and auto-focus the search input. This feature includes a keyboard shortcut.
Restore the old compose window
Among the masses who have experienced a sense of loss after Gmail introduced its new compose window? Don't worry, we have your back! Gmelius brings back the compose window you've come to know and love.
Print cleaner emails
Want your printed emails to look more professional or display more content on a single page? Gmelius removes the Gmail logo and modifies Gmail's global print stylesheet.
Remove the "People Widget"
You don't use the so-called "People widget" or contact box appearing at the right of your emails? Remove it from Gmail and enjoy a larger space to read and browse your messages. You will need to disable the ads first for this feature to work properly.
Customize Gmail navigation icons
The native Gmail navigation icons can look a bit confusing. While you have the possibility to choose either buttons with icons or buttons with text, Gmelius gives you the option to have buttons with icons and text. Moreover, you can also colorize the navigation icons to make them even more intuitive.
Add a subtle row highlight
Make the navigation through your Gmail inbox more eye-pleasing by adding a subtle row highlight when the mouse goes over a message. Gmelius features a row highlight whose color is customizable in order to suit best your theme. This feature is also compatible with the Preview Pane Gmail lab.
Homogenize the appearance of your incoming emails
Not a big fan of those emails sent with an exotic font (e.g. Comic) and catchy colors? Enable this feature and Gmelius will homogenize the look and feel of your incoming emails based on the default settings of your Gmail theme.
Add attachment Icons
In your Gmail inbox, attachments are indicated by a paperclip. What if different icons were shown depending on the type of file attached to your emails? Gmelius exactly does this by offering type dependent attachment icons, either in color or in black and white (Chrome only). More than 40 types of files are currently supported from the standard .doc|.pdf|.xls to the less frequent .php|.svg|.ogg.
Disable "Consider including"
Some Gmail users were not happy with the activation by default of the "consider including" feature when composing their emails. If you one of them, just disable it with Gmelius.
Make the Google logo clickable
Remember the days when one simple click on the Gmail logo in the header was magically refreshing and sending you back to your inbox. Gmelius revives this nice feature.
Auto-Scroll to the top of your inbox à la Google+
Hand cramps scrolling continuously up and down in your Gmail inbox? Relax and enjoy a smooth auto-scroll to top functionality by simply clicking on the top lightgrey header, like in Google+.
Move emails labels from the left to the right of your inbox
In Gmail, labels are placed at the very left of emails subjects. Gmelius gives you the possibility to move labels from the left to the right of your inbox, making then easier to read the subject of your emails at first glance.
Move attachment icons from the right to the left of your inbox
In Gmail, attachment icons are placed at the very right of emails subjects. With Gmelius, you can move those icons from the right to the left of your inbox, making then easier to see the type of attachment an email has.
Automatic De-obfuscation of email addresses
At Gmelius, we want to make Gmail cleaner, better but also smarter. That's why, Gmelius de-obfuscates automatically any email addresses you copy and paste from a website, making so your life a bit easier. Currently available for Gmelius Chrome and Gmelius Firefox.
Regain some space in your inbox
Gmail can look a bit cluttered. Gmelius gives you the possibility to regain some space and to clean your inbox by removing diverse elements such as chat statuses, chat, Google+ activity, footer, etc.
To be clear and to the point, Gmelius will never access, read, store, alter or transmit your personal data. If you are a Chrome user, the permission warnings come from the fact that this extension modifies the style and user interface of Gmail within your browser and so needs to know whether Gmail is open in one or several of your tabs to apply those changes to Gmail's subdomain (mail.google.com).
Developers’ website: http://gmelius.com/
Chrome installation page: https://chrome.google.com/webstore/detail/gmelius/dheionainndbbpoacpnopgmnihkcmnkl
Firefox installation page: https://addons.mozilla.org/firefox/addon/gmail-ad-remover/
Opera installation page: https://addons.opera.com/extensions/details/gmelius-no-ads-and-better-ui-for-gmail/