Strange thing - works perfectly on x64 Windows, but on x86 do both on right click: opens page in bg tab and shows context menu.
Update: found the reason - 'absolute enable right click' script was running.

It would be great if it's possible to add function 'Long Right Click' (about 300ms or configurable) which opens link context menu.

UPD2. I know that. But to press ctrl I have to put away my beer can, which isn't productive.