I know how to open a link from (an older version of) Opera in FF - is that any help to you?
Text copied from Opera is plain text, so I got help there (on the Surfulator forum actually)
-tomos
Anything may help. Welcome of course. I am learning. Just trying.

-Contro
seeems to be included by default in Opera these days:
(see attachment in previous post)
-tomos
Oh. I have Opera Installed. running to try.
But I have to say i have adopted browseTraySwitch.
Yesterday i obtain Yandex browser. It's very similar to Chrome I think.
And with browseTraySwitch is easy to change between browsers
I have from time ago an addon for firefox to see a web using IE without abandon the browser.
Open link target in IE
really are pro-browsers to keep inside a determined browser, not to change the browser like browseTrySwitch does.
I don't remember what addon is, and I have tried to locate but don't see in the addons, but the addon is because i have the option.....