Extensions inspire




Ben Lau







November 18, 2020

Webstore Link:


version 0.4  - Download ZIP file


Dualless is a poor man's dual monitor solution. It splits your browser windows into two by just 2 clicks. The ratio can be adjusted according to your needs.You may have a browser window showing on the right that occupy 30% of your screen. Then the rest of space leave to Google+.

The extension simulates the environment of dual monitor. Utilize the space for 16:9 monitor


* Split current browser window into a pair. And resize their position and size according to the ratio specified by user. (3:7,4:6,5:5,6:4,7:3)

* Merge splitted browser windows back to a single window , or make it occupy the full screen area.

* MacOS X like windows management. When one of the splitted windows got focused, the other in pair will be shown together. They always occupy the whole screen.

* Press middle key on split window button will duplicate the current page on other window.

* Bookmark management. Relaunch your favior site in a new tab and windows will be splitted in the recorded ratio.

The software is released under open source license of GPL 2.0


Release 0.4
* Added auto maximize mode
* After splitted, if one of the window close, the remaining one will be maximized to occupy all the space
* Added bookmark support

Release 0.3
* Now works with maximized window!
* Press middle key on split window button will duplicate the current page on other window.
* Vertical split is supported.
* Options page is added. User may enable/disable pairing mode(MacOS simulation)
* Ubuntu with Unity works better now

Top Extensions


What has inspired us?

Extore is a team of professionals who are passionate about creating extensions for web browsers. This devotion also gives us opportunity to appreciate work of other people. We get inspired by useful, open source extensions made by developers all over the world. Our strong belief is that one should share helpful add-ons with others. That’s why we’d like to present you our ever-growing list of favourite extensions that have inspired us. Moreover, as you probably have already learned, sometimes struggling for the best brings an end to the good. Talking about add-ons it often turns out that an upgrade is worse then previous version. Also it can become really tricky to get back to the beloved version of your favourite extension. That’s why we’re going to make not only the latest, but all versions of our favourite (and we hope yours too) add-ons available for download. No more compromises, just stick to the version you really like!