to je hezky, ze mas patent na rozum …
https://addons.mozilla.org/en-US/firefox/addon/722/
v 1.9.9.81
+ Experimental blocking of page refreshes happening inside untrusted
unfocused tabs, should provide protection against Aviv Raff's scriptless
„tabnabbing“ variant. Enabled by default, can be controlled through the
noscript.forbidBGRefresh about:config integer preference:
0 – no blocking
1 – block refreshes on untrusted unfocused tabs
2 – block refreshes on trusted unfocused tabs
3 – block refreshes on both trusted and untrusted unfocused tab
Address patterns matching pages which shouldn't be affected can be
listed in the noscript.forbidBGRefresh.exceptions preference