Couldn't have stated it better! As I do several personal genealogy sites, this is particularly annoying and troublesome artistically.

Have you tried adding "border-collapse: collapse;" ?

Hope that works. Let me know!

Two things:

1) I tried your suggestion, and if I did it right, it actually makes the rendering issue much worse. Give it a try (using a wide border to emphasize the problem) and you'll see what I mean; and

2) I shouldn't have to use CSS to fix Firefox's HTML rendering problems. If the developers could get it right in 3.6, then they should still be able to get it right in 4.0.

But thanks for your suggestion all the same.

Am amazed to see the amount of new code FF4 generates. Is it trying to 'fix' non-compliant html with CSS? Whatever, it's not welcome. At least one old page of mine with a table border displays as you describe, beveled. Firebug shows at least 20 lines of CSS that are not in the original html.

Where is the documentation/justification for FF's approach, and how can I best override it? Or must I bring every old page into compliance? Whatever happened to aging 'gracefully'?

Please don't answer this if you're a cat, a bear, or a yeti. After one day I'm sick of Mozilla's cutesy-poo animals already.

Your HTML code isn't out of compliance. FF developers are out of compliance with the HTML specification. Either they don't understand it, or are too lazy to read it.

You know what's funny? SeaMonkey, which also uses the Gecko rendering engine, renders table borders correctly, as did FF3.6. Prior to FF3.6, if my memory serves me correctly, the rendering of table borders was the same as it is now in FF4. Then they fixed it in FF3.6.