This test case opens an SSL page with a script pulled through plain HTTP. If an alert is shown without user confirmation, this is potentially insecure. However, the fault in this case would be on the webpage side, and not exactly on the browser.
If this test case shows "FAIL", the browser is vulnerable to Man-in-the-Middle attacks
The same test as above, but this time the SSL script is loaded dynamically after page load. Please wait several seconds for the result.
Next part: basic tests for password managers