Similar to the need to properly filter cookies in the browser, we have the need to properly filter scripts. Cookies and scripts are completely different elements - but proper filtering of each is essential, to making many Blogger features operate properly . If you have a problem with Blogger - either accessing / using the dashboard, or using / viewing a blog - one of the simplest things to check, complementing cookie filter settings , is the browser script filter settings.
What Blogger won't tell you