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Comparator 0.2


I use both IE and Mozilla Firebird for browsing. I like to check if my site/web apps I develop looks good and works as intended in both of these browsers. So I built application which has both IE and  Mozilla embedded in it. Now I can check out how any site looks in both browsers instantly. The screenshot show Yahoo rendered by both IE (on top) and Mozilla (below). Previously I never noticed they were rendered differently.

Check out the GDN Workspace for the sources.

Whats new in V0.2

  • Added Toolbar and Status bar
  • Added synchronized browsing
  • Added IE Favorites Integration
  • Address field now works like IE’s address field. Drop down of previously entered addresses and auto complete
  • Ctrl + Enter prefixes ‘http://www.’ and suffixes ‘.com’. Shift + Enter prefixes ‘http://www.’ and suffixes ‘.net’. Ctrl + Shift + Enter prefixes ‘http://www.’ and suffixes ‘.be’


  • Dot net Runtime V1.1
  • Mozilla and IE should be installed
  • a. Mozilla control should be registered. (Open command prompt. Go to the folder containing “mozctlx.dll”. And type “regsvr32 mozctlx.dll”.)
    b. Alternatively you can install mozilla control using a control installer by Adam Lock

I have tested this on WinXP SP1/IE6 SP1/Firebird 0.7 and Win2000 SP3/IE 5.5/Firebird 0.7 configurations.


  • Synchronized scrolling
  • Mozilla bookmarks integration
  • Viewing just IE rendering or Mozilla rendering
  • Multiple tabs for opening multiple pages simultaneously
  • Options dialog for configuring comparator
  • Send to IE and Mozilla
  • Showing IE and Mozilla side by side or top and bottom
  • Timing of rendering, comparison
  • Showing in multiple versions of IE ?
  • Validating CSS, XHTML, HTML etc
  • Google Search
  • Automatic refresh
  • Deleting cache
  • Use Sandbar for toolbar
  • Help
  • Better error handling when Mozilla controll in not installed

Thanks to Yazoo for the icons, Lutz Roeder for the toolbar and Rama Krishna for URLCombo.


comparator screenshot


The Software comes “as is”, with no warranties. None whatsoever. This means no express, implied or statutory warranty,
including without limitation, warranties of merchantability or fitness for a particular purpose or any warranty of title
or non-infringement.

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