Firefox plugins that you need as a developer
Like the title says, if you are a web developer and a firefox user, you NEED these plugins to effectively and efficiently build a website.
1. firebug
I dont think i need to explain the importance of this plugin. It’s the best thing since the invention of sliced bread.
2. firecookie
This one works in conjunction with firebug. It allows you to edit cookie values. Especially useful when you need to reset a cookie based login logic. Just find the session cookie name and delete it. You can have a brand new session. Also good for poking around and seeing the inner workings of websites.
Also works in conjuction with firebug.
The site doesn’t come out quite as exactly as the psd? And you can’t quite tell what is off. Well, with pixel perfect, you can add an image overlay of you psd design to you browser, so you can line up the design with the html version to see what is wrong exactly.
4. measureit
Not sure how many pixel a particular area takes up? MeasureIt can help you measure the area in pixels. It might be hard to find for first timers. It’s all the way on the lower left hand corner.
5. SenSEO
Also works in conjuction with firebug.
SenSEO tells you exactly how and what you site is lacking in SEO aspect. Just type in the keywords.
If you find the javascript debugger that comes with firebug lacking somehow, you can install this one.
7. Tamper Data
Use tamperdata to view and modify HTTP/HTTPS headers and post parameters
8 Yslow
Also works in conjuction with firebug.
Is your site running slow? Use this to find out why.



I don’t think I could go back to making websites without using Firebug. It speeds up the development process no end, both by letting you inspect elements to see what’s gone wrong (if something has) and also to test tweaks to CSS.
I can’t say I’ve heard of the others listed here. I’ll have to check them out.