Apparently mine is off but as a novice of only average intelligence I am unable to make any progress from the point it tells me to open my browser. I don't know what a browser is so how do I open it?
A browser is what you use to view websites. It could be Internet Explorer, Firefox, Chrome, or Microsoft Edge, but others are also available. If you can let us know which one you're using, then we may be able to help you further.
So, looking at previous responses to this, it seems one suggestion was to reinstall the browsing protection component from the Chrome Webstore:
Some else additions are:
Online documentation about (for Windows) or F-Secure Knowledgebase article:
where possible to find "Activatation"-steps for installed addon under Google Chrome (after installation state of addon/extension is 'disabled' and need to manually allow/enable it).
Also, good to doublecheck that your Google Chrome is chosen as default browser. Otherwise, required to enable extension under default browser (if your experience is "warning" under F-Secure SAFE Main UI).