To get larger type, you could try a different theme, or you could try the following add-on which works with any theme: https://addons.mozilla.org/en-us/firefox/addon/theme-font-size-changer/ Any luck? As for the site icons, hmmm, that's a tougher one. You can write style rules for various parts of Firefox, but I don't know whether they can attractively enlarge icons.

There are three choices I can think of # Use the large icons # Fiddle with preferences to change settings #use a software extension to make changes for you Large Icons. <br /> If you have the small icons choose the big ones instead. * right click on an empty part of a toolbar, use the customise option and choose large icons * see [[Customize Firefox controls, buttons and toolbars]] Use software extensions <br /> * see [[Use themes to change the look of Firefox]] * look for them here [https://addons.mozilla.org/en-US/firefox/extensions/appearance/] * also note that ''no squint'' affects the web content and is popular <br />https://addons.mozilla.org/en-US/firefox/addon/nosquint/ * if you or someone else needs more help in improving Firefox's accessibility see<br/>http://www.accessfirefox.org/ <br/> very large icons and screenreaders etc. Preferences<br/> This is not entirely straightforward. You change advanced settings by going into ''about:config'' # type ''about:config''into the address bar and hit the return key #* see http://kb.mozillazine.org/About:config # accept any warning #You are looking for the preference ''layout.css.devPixelsPerPx'' start keying that into the search bar then select it when you find it #use the Modify option and experiment with SMALL changes to the value. It will be set as -1.0 or 1.0, try 1.2 , 1.4 , 1.6, 1.8 & 2.0 ------ P.S adjusting the preference may produce minor problems with which tooltip hints displayed for instance in the bookmarks sidebar (Bug 644952)