All chromium extensions throw errors since update to 13.10 [closed]

Updating to ubuntu 13.10 also updated Chromium to 29.0.1547.65-0ubuntu2, breaking ALL of my Chromium plugins.

Using synaptic, do a 'complete removal' of the 'chromium-browser' which also uninstalls 'chromium-codecs-ffmpeg-extra'. Reinstall the prior stable version of Chromium 28 for ubuntu 13.04 (chromium-browser_28.0.1500.71-0ubuntu1.13.04.1_amd64.deb). The earlier versions of Chromium can be found at http://www.ubuntuupdates.org/pm/google-chrome-stable. Download the appropriate CHROMIUM '.deb' file, 'right-click' to open with 'Ubuntu Software Center' and install.

All of my plugins/addons (Adblock Plus 1.6.1, AutoCopy 1.4.1, LastPass 2.5.5, Omnibox Timer 0.3.1) work again EXCEPT FOR 'Cool Clock' (ver 3.0.1.2).

I just update Chromium browser to the version 30 (30.0.1599.114-0ubuntu0.13.10.2) and all problems were gone. The simplest method to upgrade Chromium browser to the version 30 is to use the PPA for Ubuntu Mozilla Security Team:

sudo add-apt-repository ppa:ubuntu-mozilla-security/ppa 
sudo apt-get update && sudo apt-get upgrade

That's all, you can test now your upgraded browser - the problems with Chromium extensions should be disappeared.