Firefox 26 error

Fixed by installing language pack

So, really quick: Firefox 26 is out and I installed it via apt-get on Kubuntu.

On upgrading from Firefox 25.0.1 I couldn’t start Firefox and got an error in a small window:

XML Parsing Error: undefined entity
Location: chrome://browser/content/browser.xul
Line Number 239, Column 5:    <broadcaster id="devtoolsMenuBroadcaster_DevAppMgr"
----^

Turns out that there was some change to the language packs and the installed language packs (en-gb and en-sa[?]) failed to load as they weren’t listed as compatible.

Easy fix for Firefox

Simple fix was to:

sudo apt-get install firefox-locale-en

After that it starts and performs as expected.

Thunderbird 24.2.0 too?

I also did an equivalent for thunderbird:

sudo apt-get install thunderbird-locale-en

Don’t know if that was required but it seemed sensible. Certainly Thunderbird 24.2.0 runs without any problems now.

Still got an error?

There is still an apparent error in the console:

(process:9163): GLib-CRITICAL **: g_slice_set_config: assertion `sys_page_size == 0' failed

But this doesn’t affect Firefox whilst running.

Did that fix it?

Hope that helps – if so please comment to aid others searching for a fix. Thank you.