User-Agent: Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10_6_1; en-us) AppleWebKit/531.9 (KHTML, like Gecko) Version/4.0.3 Safari/531.9 Build Identifier: Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.6; en-US; rv:18.104.22.168) Gecko/20090824 Firefox/3.5.3 It looks like if page served over HTTPS has any "data:..." URLs in it, this page got marked as "partially encrypted". Reproducible: Always Steps to Reproduce: 1.go to URL provided 2. 3. Actual Results: "lock icon with exclamation sign" in status bar Expected Results: "lock icon" I do not think it is platform related. FF on XP behave the same way.
This is fixed in upcoming releases, duplicate of bug 477118