OK, I forgot that Hebrew is RTL language.
Try this instead in your recipe:
Code:
extra_css = '@font-face {font-family: "serif0";src:url(res:///Data/FONT/serif0.ttf)} body{direction: rtl; font-family: serif0, serif} .article_description{direction: rtl; font-family: serif0, serif} a.article{direction: rtl; font-family: serif0, serif} p{direction: rtl; font-family: serif0, serif} '
Here I explicitly specify text direction.