spyder Rated 1 out of 5 stars

spyder, I'm looking for the same thing.
I'm going to try https://addons.mozilla.org/en-US/firefox/addon/2166
It seems to be the closest thing to it.

This review is for a previous version of the add-on (0.15). 

question Rated 3 out of 5 stars

I searched for a simple add-on capable to display the remote web server version (status bar, menu option ,etc). But this is not useful for such a simple purpose (you have to open the live http headers window, reload the page, and search among hundred of lines, some not generated by the domain displayed in the browser main url address). That is, it is even faster to open an xterm and run a telnet with a HEAD command against the remote server. Does somebody know a simple addon for such a job?

This review is for a previous version of the add-on (0.15). 

Rated 5 out of 5 stars

Useful and easy.

This review is for a previous version of the add-on (0.15). 

Rated 5 out of 5 stars

I found it appends a string at the end of every field, like this http://a.imagehost.org/0198/20090811.png , I tried to disable all other addons and it's still appending them.

This review is for a previous version of the add-on (0.15). 

Rated 5 out of 5 stars

Does what it says on the box. I don't use it often, but when I do I'm thankful it's there. Great for debugging dynamic web sites and occasionally snooping the implementation of other web sites. Probably only of value to web developers and other web geeks.

This review is for a previous version of the add-on (0.15). 

Rated 5 out of 5 stars

Very useful and easy to use.

This review is for a previous version of the add-on (0.15). 

Useful tool Rated 4 out of 5 stars

Very useful tool for tracking req. and response.
Work without any problem

This review is for a previous version of the add-on (0.15). 

Rated 5 out of 5 stars

Switched to FF 3.5 as primary, thanks to the latest update :)

This review is for a previous version of the add-on (0.15). 

Strange characters in FF3.0.11 Rated 4 out of 5 stars

For me, in FF3.0.11, Win XP SP2, LHTTPH version 0.15 shows a string of strange characters after each header string. Presumably same sort of problem as was fixed for FF3.5 still/now exists in FF3.0.11.

This review is for a previous version of the add-on (0.15). 

Rated 5 out of 5 stars

It is very helpful when troubleshooting proxy issues!

This review is for a previous version of the add-on (0.14). 

Rated 5 out of 5 stars

very effective tool for fighting back a bit ones ones privacy

This review is for a previous version of the add-on (0.14). 

Works fine on 3.5pre Rated 4 out of 5 stars

Works fine on 3.5pre (2009-06-05) when I force it to install with Nightly Tester Tools. No strange characters as in Hans’ link, either.

A lite version more akin to Safari’s “Activity” window would get 5 stars and be much appreciated.

This review is for a previous version of the add-on (0.14). 

Rated 5 out of 5 stars

FYI: It does work in Firefox 3.5 beta - see https://www.mozdev.org/bugs/show_bug.cgi?id=21016

This review is for a previous version of the add-on (0.14). 

Rated 5 out of 5 stars

Does all I expected it to do—and does it wonderfully.
Wish it was compatible with FF3.1.

This review is for a previous version of the add-on (0.14). 

works and useful Rated 4 out of 5 stars

It doen't have many features but it works just fine and I'm using it pretty often when I'm developing.

This review is for a previous version of the add-on (0.14). 

Rated 3 out of 5 stars

Starting with FF 3.0.6 it no more works to resend a post-header with LiveHTTPheaders 0.14... Not relevant which site or settings, one always gets error:

Request Entity Too Large
The requested resource
xyz
does not allow request data with POST requests, or the amount of data provided in the request exceeds the capacity limit.

I hope the extension will be updated soon!

This review is for a previous version of the add-on (0.14). 

Rated 4 out of 5 stars

Please update this for 3.1/3.5 betas and beyond.

This review is for a previous version of the add-on (0.14). 

Rated 5 out of 5 stars

Really useful and feature-wise

This review is for a previous version of the add-on (0.14). 

Rated 5 out of 5 stars

Excellent add-on that is not quite 100% accurate compared to a tool like wireshark, but very very nice.

This review is for a previous version of the add-on (0.14). 

Quite useful Rated 3 out of 5 stars

It's essential that there be a way of viewing headers with firefox, and this accomplishes that task. But, it could use some improvements. It would be useful to be able to only view headers for transactions for a specific tab. The improvements mentioned above of allowing copying to the clipboard and saving settings would also be useful.

This review is for a previous version of the add-on (0.14).