Adjusting font size ?

[modeller]

I have several email adresses which I use for different purposes and I am able to adjust the font size, underline ,bold , type etc. but not on Orange.
I have checked everything but with Orange I can't do anything with the font and most importantly for me its size .

Anyone know if/how it can be done on Orange. They are not my ISP which may be the reason.

[modeller]

I upgraded my Firebox which as a bonus enabled me to adjust the text.