Multiple Security Threats

[armstrong360]

I suddenly started getting dozens of "security threat secured" notices. See attachments.  Can anyone tell what might be causing this. Is it something to do with Workona, the tab management app?  How can I determine the cause?
Thank you.

[dracekCZ]

Hi, I just got my Workona blocked. Hope it's a false positive, as Workona is just an chrome extension and it's not trying to steal anything (as far I know). It may be accused of grabbing my URLs, but that is exactly what it should do. I don't want to switch Avast off now and then, but I have some 250 tabs organized in Workona and I would really hate to migrate them elsewhere...