Browser Spellchecking: Text areas and text boxes

I love Mozilla's dictionary extension/add-on, though I noticed that it only works on text areas (blog entries, facebook comment boxes, etc.) as opposed to other one-line text boxes (blog titles, "Enter your name" type fields).  It turns out that this is a setting that can be changed so all text input boxes can be checked for spelling.  Also, it's not difficult to change either:

Using Mozilla:

• type about:config into the URL address bar and hit Enter
• take note of the resulting message, warning users to be careful with any changes and click the, "I'll be careful, I promise!" button to bring up a list of all of the preferences available in the browser
• type layout.spellcheckDefault into the filter and double click on the matching result to change the setting from 1 to 2
• 0 = Disable Spellchecker
• 1 = Enable Spellchecker for multi-line controls (default)
• 2 = Enable Spellchecker for multi- and single-line controls
• Click OK to save the parameter

That's it!  Change it back to 1 if you don't like it, though I find it to be pretty useful.