Firefox does not load a pdf-page shown by a specific link, but goes slow and finally crasches instead. IE10 does work. Link is fro state official side, smhi.se

Question

I have windows7, just installed and no bugs. As said above, when I try Internet Explorer 10, recently installed, I have no problem looking on this pdf - page.
The page is found by logging in to smhi.se, the swedish wheater service. I have no problem with the majority of information shown there, just one specific page.
It can be found by clicking "Väder", then "Is till havs", then down under click "Istjänsten" and then "Senaste iskarta i färg".
This pdf-document is then loaded very slowly and if I try to navigate on the page it crasches.

Answer 1

First, after clicking the Firefox button in the upper corner, there is not popping up the square on your solution above!
I can not select Applications in that menu-line thus.....because I do not have it!
Instead I get a small square with swedish text. Only thing which resembles me of any action is: Settings (Inställningar), so I chose that and another square shows where strangely enough the same line is about Acrobat is repeated twice. No other settings are repeated twice.....
So I go to the line for Acrobat and change both lines to Acrobat reader
Then I save and go out.
I try again to log into the link I am interested in, but no result, same problem as before.
Has your swedish people done something strange???
Best regards // Hans Hällström