Display websites next to each other in Firefox

Martin Brinkmann
Mar 18, 2007
Updated • May 31, 2013
Firefox, Firefox add-ons

Did you ever have the problem that you needed information from two websites at once and had to switch between them all the time to access them? I usually have the problem when I write a new article for Ghacks and have to take a look at another website to find the information that I need for my article.

This gets extremely irritating if many tabs are open at once and I miss the tab that I want. Too many clicks in my opinion, that is why I was searching for a way to display two websites next to each other in Firefox.

I did find the Split Browser extension for Mozilla Firefox which does exactly what I wanted. It allowed me to split the screen anyway I wanted it to split.

You can split the browser screen horizontally or vertically, and split the resulting areas again if you like.I'm happy with two websites that are next to each other vertically but you can theoretically split the content area in four browser windows or even more.

The author of the extension has a screenshot at the extensions website that shows a content area with about 20 websites. This is of course just for demonstration purposes, no one would really split the content area in that many parts. I think the limit is four different areas, probably more if you run really high resolutions.

Using the extension is no problem at all. Once you have installed the Split Browser extension and restarted Firefox you see that the extension has added a new entry to the right-click menu. The entry is called Split Browser and it appears when you right-click on websites or links.

The options are to split the browser above, right, left or below which actually loads the same website again in the space that you have selected. If you choose right for example it will split the content area so that it is split in half in the middle with the selected link or the current website displayed on the right half. You are free to decrease or increase the size of every website in the content area.

If you wanted to create a new area in the second half you would right-click in that half and select below for example to part it again.

I personally think that this is a must have extension for everyone who is having a blog for example. Switching tabs to view information that you need is no more. Great!

Update: The extension is no longer compatible with the most recent versions of the Firefox web browser. you can however use Tile Tabs or Tile View instead which provide you with the same feature set.


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  1. Godfrey Daniel said on March 18, 2007 at 9:26 pm

    Yes, and with Opera you can “shrink to fit”, making entire page viewable within the pane–no horizontal scrolling…sweet

  2. Godfrey Daniel said on March 18, 2007 at 9:20 pm

    Also great for dragging and dropping content into your Gmail composition field

  3. Afuro said on March 18, 2007 at 5:48 pm

    wow, nice. But in Opera, its already built in. Just press shift+F5 / shift+F6, and you could have horizontal or vertical view of webpages.

  4. Seb said on March 18, 2007 at 1:55 pm

    Hello thanks for all these great articles- they’re so useful! I’ve got your RSS feed and it’s very useful. You talk about the things I’m always interested in so thanks! Keep the great work up!

  5. Joe said on March 18, 2007 at 12:19 pm

    Just tried it and it is really awesome. I know it’s going to be very useful to me – thanks!

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