You can see the extensions you have installed by:
Strange. I’ve never used Chrome, but in the past couple of weeks when I’ve accessed Google I’ve spotted a black banner at the top that says I’m not running the latest version of Chrome and need to update. I just kill the banner.
Tonight, I tried several times to access FreeRepublic. The only thing that would appear was one of those pages listing ads like you described and the page indicated it was coming from TWC.
I finally logged off, shut down and rebooted. Ran my defrag and then tried again and FR came up just fine.