Comment 2 for bug 1275161

i too am experiencing the same issue. some webpages don't ever fully load. very strange behavior. here's the results from running that apport command. Another tab did open in firefox and I DID ALLOW access to my launchpad account for this computer so I don't know why it didnt' do what it was suppose to do.

apport-collect 1275161
The authorization page:
 (https://launchpad.net/+authorize-token?oauth_token=DtzxxNHPnSk1wqbCq7M2&allow_permission=DESKTOP_INTEGRATION)
should be opening in your browser. Use your browser to authorize
this program to access Launchpad on your behalf.
Press any key to continue or wait (5) seconds...
Waiting to hear from Launchpad about your decision...

(process:8583): GLib-CRITICAL **: g_slice_set_config: assertion 'sys_page_size == 0' failed
ERROR: connecting to Launchpad failed: Unable to find the server at launchpad.net
You can reset the credentials by removing the file "/home/xubuntu/.cache/apport/launchpad.credentials"

What other info can I provide?
lspci -nn | grep Ethernet
03:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller [10ec:8168] (rev 0c)

uname -a
Linux xubuntu 3.11.0-12-generic #19-Ubuntu SMP Wed Oct 9 16:20:46 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux