User-Agent: Mozilla/5.0 (Windows; U; Windows NT 6.0; it; rv:1.9.1.2) Gecko/20090729 Firefox/3.5.2 GTB5 (.NET CLR 3.5.30729) Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 6.0; it; rv:1.9.1.2) Gecko/20090729 Firefox/3.5.2 GTB5 (.NET CLR 3.5.30729) Sorry for my english but I'm italian. When I switch to Private Browsing all the page became smaller. I made two screenshot to made myself clear. Normal Browsing: http://img11.imageshack.us/img11/2388/normalmodeff.jpg Private Browsing: http://img19.imageshack.us/i/privatemodeff.jpg/ Reproducible: Always Steps to Reproduce: 1. Open any Web Page 2. Switch to Private Browsing Actual Results: Any Web page in Private Browsing became smaller. Expected Results: Web pages shouldn't became smaller.

This bug is already fixed on trunk and in Firefox 3.6 Alpha 1, and will probably be fixed in 3.5.3 as well.