Rated 3 out of 5 stars

Didn't like this release. Too buggy. Doesn't do what I expect it to do.
I'll stay with firebug 1.3.3

This review is for a previous version of the add-on (1.4.2). 

I'll stay with firebug 1.3.3 Rated 2 out of 5 stars

It has a lot of bugs to be released. I regret wasting my time testing it. I'll stay with version 1.3.3

This review is for a previous version of the add-on (1.4.2). 

Rated 5 out of 5 stars

Amazing tooooooooool

This review is for a previous version of the add-on (1.4.2). 

Rated 4 out of 5 stars

Always get "Failed to load source for: " when Looking at DOM

This review is for a previous version of the add-on (1.4.2). 

Rated 5 out of 5 stars

Wow! This is awesome! Makes finding code and editing elements a lot simpler. :)

This review is for a previous version of the add-on (1.4.2). 

Rated 5 out of 5 stars

One annoying thing, makes 1.4.1 almost unusable for me. Async responses shows in one line so main part of the long response remains behind the window borders. Have to fall back to 1.4.0 ((

This review is for a previous version of the add-on (1.4.1). 

Rated 5 out of 5 stars

excuse me, my firebug always "you have to restart firefox to complete installation".but restart take no effect.

This review is for a previous version of the add-on (1.4.1). 

Rated 5 out of 5 stars

With version 1.4 the debugger contain now new powerful features and a better handling. I had a javascript problem (debugger could not view the sources) could it could be fixed with the powerful discussion area of the developer website.
Thanks for this tool.

This review is for a previous version of the add-on (1.4.1). 

Firebug upgrade problem Rated 5 out of 5 stars

I have a problem upgrading to new Firebug - it says "you have to restart firefox to complete installation" but nothing happens after restart - the same message in 'addons' window. Ubuntu, FF 3.0.12

This review is for a previous version of the add-on (1.4.1). 

Great tool! Rated 5 out of 5 stars

Great great tool, thanks - I couldn't live without it! I use it every day at work for debugging and designing web applications.

Bug with FF 3.5:
CTRL+F12 is overruled by Firefox as "undo close tab". Hence this shortcut no longer works with Firebug.

This review is for a previous version of the add-on (1.4.1). 

Rated 5 out of 5 stars

One of the most essential tools for a web developer. I am *very* impressed with this add-on

This review is for a previous version of the add-on (1.4.1). 

Rated 5 out of 5 stars

Phew. Version 1.4.1 seems to be up to standard again. No crazy behaviour or crashes so far. Fingers crossed, but I've got a good feeling about this.
I think Firebug is back to its good old 5 star standard.

This review is for a previous version of the add-on (1.4.1). 

Rated 5 out of 5 stars

I have not (yet) had a problem with 1.4, altho' new UI is always a little annoying at first. This is still the most useful tool you can get for web development. I use the Lite version for Safari and IE with a great deal of success as well. Hard to remember how much of a nightmare javascript debugging was 5 years ago - Firebug changed all that.

This review is for a previous version of the add-on (1.4.0). 

Rated 5 out of 5 stars

This addon has saved me tons of time, I am eternally grateful to the developers.

@voskat -1, some respect would be nice..

This review is for a previous version of the add-on (1.4.0). 

Rated 2 out of 5 stars

Upgraded to 1.4 and have had a few problems, i.e. FOUC symptoms. Saying that firebug is the best web dev tool out there and it is free, so I have gone back to 1.3.3. for now :(

This review is for a previous version of the add-on (1.4.0). 

Rated 1 out of 5 stars

Nice addon, but DO NOT UPGRADE TO 1.4.
Half of features are not working and my Fx hanges up every ten minutes during intensive debugging. Save your nerves — wain utill stable release.

This review is for a previous version of the add-on (1.4.0). 

Rated 2 out of 5 stars

Version 1.4 is *significantly* less usable than earlier versions. When opening the console on a new page, it is silently unresponse until page reload, object inspection is complete broken, and more.

Stick with 1.3 (click "View Older Versions" below) until 1.4 is a little more mature.

This review is for a previous version of the add-on (1.4.0). 

Rated 5 out of 5 stars

Essential for web development.

This review is for a previous version of the add-on (1.4.0). 

Rated 5 out of 5 stars

Excellent!!!

This review is for a previous version of the add-on (1.4.0). 

Doesn't work for me. Rated 2 out of 5 stars

Firebug on FF 3.0.x was awesome. It had a couple bugs...but basically it worked great.

I just upgraded to FF 3.5, and I am very unhappy about having done so. The browser is fine I guess, but I rely on Firebug for my work. This new Firebug is basically useless now. It is unbelievably slow.

I have to completely remove Firefox and go back to 3.0 or I can't get any work done. This sucks!! Why did you release this to us before it was ready?

This review is for a previous version of the add-on (1.4.0).