upgrade sid now firefox no longer prints. dialog button "the paper size is not supported by your printer"

[Mitchell Laks <mlaks@verizon.net>]

Hi,

I have been using the xprint system for printing from firefox cause it seemed 
to work better than cups when printing from firefox. i have both cups and 
xprint installed.

i updated my sid installation lately. Now I seem not to be seeing the usual 
xprt type stuff in the printing dialog box - only cups printers but the type  
of printer it says is 

hp-us-government-letter (203x253 mm) which seems to be something new instead 
of just plain letter

i have a standard postscript hp laster jet 1200 printer

what is the meaning of the dialog window i now get 

there was a problem printing because the paper size you specified is not 
supported by your printer?

Mitchell