Thread:Project:Support desk/Adding a font size change button?/reply (2)

I don't know about an extension, which could do that, but that also is not needed actually: I would go for the webbrowser as well. For example in Firefox you can also use Ctrl + Mousewheel to zoom a page. Very convenient and does not only work in your wiki (like a button in the webpage would), but in each and every page. The output of MediaWiki has been tested to be compliant with these functions. :-)