hi.
a good news!
webvisum is signed in mozilla firefox website and you can use this
link and install version 0.9.5!
https://addons.mozilla.org/en-US/firefox/addon/webvisum/

--
Those who follow the Messenger-Prophet, the Ummi, whom they find
written down with them in the Taurat and the Injeel [who] enjoins them
good and forbids them evil, and makes lawful to them the good things
and makes unlawful to them impure things, and removes from them their
burden and the shackles which were upon them; so [as for] those who
believe in him and honor him and help him, and follow the light which
has been sent down with him, these it is that are the successful.
holy quran, chapter 7, verse 157.
best website for studying islamic book in different languages
al-islam.org