posting pics from photo bucket

[bigeasy1]

How come all of a sudden I can't copy the image from my photobucket album and apply it direct to this or any other site.?
I've done it hundreds of times by left clicking onto the image which then says copy,and go to the other site and right click and paste it.It doesn't work anymore.when I right click on the site i want the picture on,nothing happens
I'm using Firefox like I always have,

*****However!! it works fine on internet explorer. why?

I can't find any way to set things on photobucket,is it a Firefox issue

Anyone know? thanks guys.