Hi,
For future reference...(Just a tad more info.)
To post an image here, see this page, as Dan had already posted the KB link...
>
http://kb.mozillazine.org/Posting_a_scr ... _the_forum
After you've taken the screen shot/s...
Reduce it/them to around 600 x 500 or so in your favourite image editor, (Be sure to remove any personal info.)
& upload them to your favourite image hosting site.
eg;
(Using "postimages.org",
0/. Upload your image.
1/. Select > from the "Do not resize" drop down, 640 x 480.
2/. No expiration. (Leave as default or as you require.
3/. Choose > Images to upload.
3a/. After the image/s have been uploaded.
4/. Select > Hot Link for Forum.
5/. Paste that link in your forum thread.
6/. Your image will be displayed in your post.
or if you're on a different site...
Select the code listed as "Forum Thumbnail" & paste that link in your post.