Comment 37 for bug 23267

Additional sites that are shown using serif (totally illegible):

firefox.co.il/he - goes without saying
linux.org.il - well..
ynet.co.il - Israel's #1 tabloid
globes.co.il - Israel's #1 economics website.
bankhapoalim.co.il - Israel's largest bank online site.
fxp.co.il - The most popular under 12y/o forum in Israel
nana10.co.il - entertainment focus website
clalit.co.il - Israel's largest medical services insurance company
memri.org.il - Right wing political site
myparty.org.il - Left wing political site
http://inbarhovav.blogspot.com/ - pretty esoteric electronics blog
il.msn.com - well..
parts of hamakor.co.il, iglu.co.il - Israel's FOSS main website.
abmaps.co.il - major maps website
walla.co.il - second tier portal.
Layla.co.il - Israel's largest club and performances site.
parts of habama.co.il - Israel's premier culture site.

All of those sites are either major, or second tier. ALL of them are unusable out of the box for Hebrew reading users.