Extremely slow page loading and "stop script" errors with Firebug open on Firefox 29

[Ghazgkull]

I have been using Firebug's Net tab for weeks to help debug the poor performance of my application.

But after upgrading to Firefox 29, I find that this has become completely impossible. A large page (AJAX application) that takes about 10 seconds to load normally, suddenly takes around 60 seconds when I open Firebug. Even if it's just sitting on the Console tab, the page loading grinds to a halt so much that the operating system starts rendering my browser as non-responsive.

Has anyone seen similar issues with Firefox 29 and Firebug?

Here are my details:
OS: Ubuntu Linux 12.04 LTS  (32-bit PAE kernel)
Browser: Firefox 29.0
AddOn: Firebug 1.12.8

[Jan Honza Odvarko]

Can I try to load the page you mentioning on my machine?
(to also see the problem)

Honza