FOUT-B-Gone fixing the flash of unstyled type (FOUT) problem in Firefox 3.6 and Internet Explorer. A Flash of unstyled type (FOUT) is an instance where web fonts appear briefly unstyled prior to loading @font-face. After the web page appears, the viewer sees unstyled fonts morph into styled web fonts.
In order to fix this issue, FOUT-B-Gone can be a good solution. It is a script which hides elements with custom fonts assigned to them for a defined period of time (like 200 milliseconds).

During that period, the fonts will -probably/hopefully- be loaded and the end-user won’t experience FOUT.
P.S. There is also a built-in function which helps detecting whether @font-face
is supported or not.
Download FOUT-B-Gone Package
Requirements: No Requirements
Website: @font-face
Download: http://www.extensis.com/en/WebINK/fout-b-gone/foutbgone.zip