Firefox shows my website, www.visitpalmas.com, with smaller fontsize than set in ATO. Actually everything seems to be smaller.
MS Explorer shows the website correctly.
I dont know what caused it. It was okay, but after writing a page it happened.
My other website: www.tocantins.info, that is 99% identical, is okay under firefox.

Anybody a clue?

are you viewing the website at 100% in firefox?
most browsers let you change the fontsize of the browser window - look for 'ZOOM' under the 'View' tab

Thanks for the fast response Juggledad!
That seemed to be the problem.
The Firefox zoom function apparently is site specific because my other, authentic, website was shown well. And the zoom function is maintained after restart of the pc.

Much appreciated.
Regards,
Rolf