243046 - Display freeze when trying to render big image at slow network speed

Status: VERIFIED FIXED

(Firefox :: General, defect)

Description

[Ciprian Popovici]

User-Agent:       Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.6) Gecko/20040403 Firefox/0.8
Build Identifier: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.6) Gecko/20040403 Firefox/0.8

Browse a while at slow speeds (dialup) and view fairly big images (few hundred
kilos) on the web. At some point the display will freeze. I can still use the
magical SysRq and kill X Windows and reboot, so I guess the keys still work, but
the display is frozen.

I've noticed it's about the size of the images (as in kilos) not the dimensions
(as in pixels). It has to be images loaded at low speeds, it won't happen with a
local webserver, local intranet or local harddisk which display them instantly.
It also won't happen in a freshly started browser, it takes some time of
constantly viewing such images to produce the freeze.

It doesn't seem to be affected by themes, extensions and so on. It does NOT
happen with the same Firefox version on Windows. It happens with various builds
of Firefox on Linux, from various sources.

Reproducible: Always
Steps to Reproduce:
1. browse for big images (hundred of kilos) at slow network speeds.
2. at some point you get a display freeze.

Actual Results:  
Complete display freeze.

Expected Results:  
Not freeze.

Comment 1

[Shaun Pen]

This is not solely dependent on a slow network connection, nor on the size of
one image. The same problem occurs when a page with several megabytes of images
are loaded (i.e. listing/gallery of full size images of 100KB+ each). The entire
browser freezes up. It happens on local web pages as well to an extent, though
the effects aren't as severe due to the local connection. I've never noticed
this problem in regular Mozilla--only FireFox. 

Comment 2

[Robin Monks]

Is this still here in 0.9.1?

Comment 3

[Ciprian Popovici]

Nope, all well now. I have used 0.9.1 for a while now and it didn't happen once.