Can stick/slush to add checking option to show current receiving address not only in computer but in the Trezor's screen too
Yes, they are working on it. I proposed this to them back in May. Meanwhile you can send small amount first and confirm with the receiver that he has received this small amount before sending the rest of the money. You will pay fee (which is quite small anyway) twice, but you will be safe from browser replacing BTC addresses.
Ahem, unless the browser only replaces the address when the amount is large enough, only when it is being used for the seonc time in N minutes...
(I assumed that the destination address(es) of every transaction to be signed by the Trezor were always displayed on the Trezor window, so that the client could check them independently of the computer and confirm with one of the two buttons. I understand from the comment above that this is not always done, is that it?)