Sometimes when I log into Yahoo mail (https log-in page), the secure icon in Firefox changes from padlock to exclamation mark. Same problem on Twitter, the https turns into an exclamation mark. This is a permanent problem on Google Image search. The worst thing about this problem is in Yahoo. When I press tab and am about to fill in my password, the caret jumps from password field to username field, which means part of my username now has appended to it part of my password. I only notice that after hitting Enter and the screen returns an invalid login error. My suspicion is that my ISP has somehow managed to inject a tiny Java script into my https log-in page. In Facebook, sometimes my first login attempt doesn't even register, so I have to hit Enter again. Is that me being too paranoid?