The big gap between web and me

Wiki is a wonderful thing for the document writing... until you like to include a screen shot.

Two default scripts:

• Linux Gnome: Print Screen -> Save -> Wiki Add Image -> Open File Button -> Locate it -> Ok -> Upload


• Windows: Print Screen -> Open MSPaint -> Paste -> Save -> Wiki Add Image -> Open File Button -> Locate it -> Ok -> Upload

How much better to use a usual visual editor (not emacs).

• Print Screen -> Paste

I'd like:

1) Either an external utility which on PrintScreen pressing saves a picture into temporary folder and places to the clipboard full path to it;

2)either Firefox plug-in, understanding that if clipboard contains a picture and I paste it to file upload field then the picture should be temporary stored and full path to the file should be inserted in the field.

An external utility breaking the standard behavior is not desirable, can't google Firefox plugin..
I'm curious if the are elisp api for working with pictures from the clipboard.