Your browser does not seem to support JavaScript. As a result, your viewing experience will be diminished, and you have been placed in read-only mode.
Please download a browser that supports JavaScript, or enable it if it's disabled (i.e. NoScript).
I just noticed this during the past week. I haven't a clue why it happened or how to fix it after searching the support forum.
Cookie 5.9.1 OS 10.12.6
P.S. I have no thread subscription options in Safari 12.0.
that just means that Cookie is disabled. just click on Enable Automatic Removal in the menu or in the main window