http://nontroppo.org/test/Op7/empty-cells.html
Slow scrolling

https://bugzilla.mozilla.org/show_bug.cgi?id=76331
http://lxr.mozilla.org/seamonkey/source/layout/tables/nsTableCellFrame.cpp#873
setcontentempty

--enable-debugger-info-modules

http://bonsai.mozilla.org/cvsview2.cgi?diff_mode=context&whitespace_mode=show&file=nsHTMLDivElement.cpp&branch=&root=/cvsroot&subdir=mozilla/content/html/content/src&command=DIFF_FRAMESET&rev1=1.51&rev2=1.52
Click on blame, then go back, clicking again on blame is weird.

Canvas demos: "Jesse Andrews (of Book Burro and userscripts.org fame) has built some awesome canvas demos for users of Safari or Firefox 1.5. He has a bar chart and some animated rectangles, but the real gem is the live chart which polls a server using XMLHttpRequest and updates a line graph with live data. He also has some fun mathematical experiments: a cellular automata generator and a neat exploration of Lindenmayer systems (both static and interactive). Read more on his blog."

http://lxr.mozilla.org/seamonkey/source/embedding/components/find/src/nsFind.cpp#883

https://bugzilla.mozilla.org/show_bug.cgi?id=203598
Easy selection follow in testcase from that bug.