For some reason i signed into my chrome browser via my google account-- probably for youtube or mail , can't quite remember why.  

Today I noticed that I was signed in, so signed the browser out as the user name covers up the minimise window control -- but, signing out also deleted all of my chrome bookmarks and extensions. 

Stupid stupid stupid.Not even quite sure why it did this, as these bookmarks were created while I was not signed into chrome and over many years. 

Fortunately, signing back in restored the bookmarks.  SO i exported them, signed out of chrome, bookmarks deleted again, then imported bookmarks again. 

I hate this 'shared' approach that chrome are taking. It removes privacy and control . 

Probably some people might like it but not me.