Firebug is a very popular extension for the Firefox web browser that allows web developers to access loads of information about any website that they work on. Among the information are the objects that get transferred, detailed CSS and HTML information, JavaScript debugging and more. The Firebug extension divides the screen in an upper and lower part with the lower part displaying the web development information to the user.
Widerbug is a tweaked version of Firebug that has been specifically designed for widescreen monitors. Instead of dividing the computer screen vertically it divides it horizontally by displaying the Firebug information in a sidebar on the right side of the web browser. This is good news for web developers who use widescreen monitors to work on their web development projects.
A previous installation of Firebug has to be uninstalled from the web browser before Widerbug can be installed to avoid complications. The web development application can then be installed and uses the same shortcuts as Firebug with the only difference that the screen is opening in the right pane.

The only possible problem that users could run into are update delays as the developer of Widerbug needs to update his extension whenever Firebug gets updated.
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Hm, having to uninstall Firebug is a drag.
Does YSlow work with Widerbug?
Widerbug is basically Firebug in the sidebar. Have not tried running both apps at the same time but would not that be overkill anyway?
@Martin
YSlow is Firebug plugin (yeah, plugin for plugin :) ). So thought that I need to uninstall YSlow, uninstall Firebug, install Widerbug, install YSlow… then possibly find out that it doesn’t work and do everything backwards. Lazy.
Will have to try on portable installation probably, proper widescreen setup is luring.
The WiderBug developer should work on getting this into the FireBug code with an option to select sidebar or bottom bar
Meh. Just pop Firebug out into its own window. Part of the beauty of having multiple monitors.
OK, that’s it. I just updated to FF4 and widerbug is not yet comparable with 4. One of the uses I have for widerbug is to adjust the width of the page for developing websites for tablets. Perfect for that!! I’ve been thinking of shutting down to redesign my office, I’m going to do that before going back to the silly idea of losing vertical height to firebug (I can’t believe they even put it there in the first place). Please hurry guys, if I have too much time on the redesign I’ll probably end up tearing out walls and I don’t need that.
Completely agree with @Keith, we need widerbug for Firefox 4, because it has been very useful in a previous version and helped us to debug our builds. Please hurry guys and release widerbug for FF4 too.
Anyway, thank you very much for previous releases and for a coming one!
Another vote for Firefox 4 support.
Widebug is super and I really don’t want to have to go back to standard Firebug
Another vote for Firefox 5 support.