Firefox is always been the favorite choice for the developers for debugging and developing web applications. The extension architecture allows anyone to add powerful add-on to the browser for robust enhancement on many different development needs. I use Firefox everyday like I need to take my lunch and dinner. So here are the most useful Firefox extensions I use that I want to share with everyone. I have to admit, many of these extensions won’t come as a eye opener to developers those who are already so deep with Firefox extensions, but hopefully there will be some you’ve yet to know about.
#1 Web Developer Tools for Firefox
With ColorZilla you can get a color reading from any point in your browser, quickly adjust this color and paste it into another program. You can Zoom the page you are viewing and measure distances between any two points on the page. The built-in palette browser allows choosing colors from pre-defined color sets and saving the most used colors in custom palettes. DOM spying features allow getting various information about DOM elements quickly and easily. And more…
Useto view and modify HTTP/HTTPS headers and post parameters. It can Trace and time http response/requests. Very useful for Security test web applications by modifying POST parameters.
Note: Current version of Google Web Accelerator is incompatible with the tampering function of TamperData. Your browser might crash.
is a great tool for web developers, since you can easily see how your web page displayed in Micrsoft Internet Explorer with just one click and then switch back to Firefox. It embed the IE right inside a Firefox Tab so that you can review your website how it looks in IE.
is a free, secure, cross-platform FTP client for Mozilla Firefox which provides easy and intuitive access to FTP servers. FireFTP is fast, secure and handy. It works right inside Firefox in a separate tab. Once you start using it, it’s hard to let it go.
FirePHP is ideally suited for AJAX development where clean JSON or XML responses are required. All data is sent via a set of X-FirePHP-Data response headers. This means that the debugging data will not interfere with the content on your page.
You must have Firebug installed and the “Net” panel enabled to use this extension.
You must also download a PHP library from
A must have tool for the SEO beginners and experts alike. Beginner web masters and seos will find SeoQuake useful for estimating effectiveness and competitive ability of their SEO efforts. In the hands of professional SeoQuake will become a powerful and indispensable tool for analyzing optimization and promotion level of internet web-projects. SeoQuake can be distinguished from similar projects by a wide range of parameters available for analysis, simplicity of use and also a tool for creation of custom parameters.
SeoBar can be described as an additional toolbar, which shows the values of selected parameters for the page currently opened in the browser window. Set of parameters shown by SeoBar is fully customizable by user.
Inclusion of parameters in SERPs
After submission of the query into the search engine user is presented with SERP with search results. SeoQuake shows values of the parameters for search results under each search result shown on SERP. Set of parameters shown is fully customizable by user. Loading of parameters can be handled in two different ways – simultaneously with the loading of the SERP or after SERP loading, by user demand. Ranking of the results by selected parameter in ascending/descending order and storing results in file are available features.
is a real handy extension to check all the links in a web page automatically and mark them out. Pretty simple but handy and it helps the developers find dead links easily, even from from search engine results.
There are many other tools available for Firefox but these are the most useful and essential tools for everyday web development works.
Do you have a suggestion to add to this list? Feel free to comment.