[Bug 216699] [NEW] Browser hangs intermittently waiting for resources to download

[Rys Sommefeldt]

Public bug reported:

Binary package hint: firefox-3.0

Ubuntu Hardy 8.04 x64
3.0~b5+nobinonly-0ubuntu1

While accessing any web pages, Firefox will hang and not respond to
immediate user input, sometimes long enough for the Compiz desaturate
plugin to activate and show Firefox as hung.  The status bar says that
Firefox is waiting for the website to respond (usually an element being
downloaded from another website, like the Google Analytics .js, or some
Flash, or an image or some other resource, but not always), and user
input is queued up.  Firefox always comes back after a period of time,
and the queued user input is performed.  Most of the time Firefox will
hang again straight away waiting for the next resource it's downloading,
until the webpage is done.

Usually, while downloading page elements, you can still scroll the page
or switch to a different tab or activate Firefox's menus, and otherwise
use the browser normally.

Not all websites display this behaviour, and it's not repeatable by
going to particular websites.  Any of them may or may not be affected.
Firefox 3.0b4 was fine.

The rest of my system remains perfectly responsive while it happens, and
other browsers are fine.

** Affects: firefox-3.0 (Ubuntu)
     Importance: Undecided
         Status: New

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Browser hangs intermittently waiting for resources to download
https://bugs.launchpad.net/bugs/216699
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