Free firebug software for linux

ff javascript library is a minimal library meant to develop real-life Javascript-enabled Web sites. ff javascript library offers a cross-brower API for all common browsers.
That is, all w3 standards compatible browsers (Mozilla/Firefox, Opera, Safari/Konqueror, etc.) on one side and Internet Explorer on the other side. At less than 7kb for the compressed Javascript version and even less than 3kb for the gzipped version, it offers quick loading even for dialup users.
Main features:
- Crossbrowser AJAX, Event and DOM functions offering the same API for w3 DOM compatible browsers and Internet Explorer.
- DOM helper functions and a DOM builder allowing to easily create complex DOM trees.
- Firebug support / emulation. If the library is executed on firefox with firebug installed it uses firebugs logging and error reporting functions -- otherwise it sets up a firebug emulation. This emulation by default does nothing and logs to a debug DIV when the URL parameter "ffdebug=1" is passed to the document.
- ScriptDoc comments enabling Code Assist functionality in Aptana
Enhancements:
- The DOM Builder supports the tabindex attribute.
- The ff.extend function was added.
- The DOM Builder ignores null arguments now.

Technika was developed for the computer security professionals to automate common exploitative task from the browser. It acts like a standard OS shell scripting environment. You can script everything from the currently viewed page just like Greasemonkey. You can autorun bookmarklets and perform safe operations on the currently viewed resource.

If you have ever needed an easy, powerful and safe way to extend web resources that you visit in a cross-browser manner, Technika is probably the right solution for you. It integrates with Firebug and provides a great environment for developing bookmarklets.