Conditional comment for Firefox check

[phpFramework]

Is there conditional comment to detect Firefox? Like we do for IE with <!--[if IE]>...<![endif]-->?

Or, is there any other client side check?

[fattyjules]

Firefox doesn't have an equivalent to IE's non-standard use of conditional comments (as far as I know).

There might be some javascript browser sniffing you can do?

On the server side, you can check your user agent with something like this;

$isFirefox = preg_match('/firefox/i',$_SERVER['HTTP_USER_AGENT']) ? TRUE : FALSE;

if($isFirefox)
	echo "<p>Yep, using Firefox</p>";
else
	echo "<p>Nope, some other browser</p>";

It's not a guarantee of course; user agent strings are easy to forge.

You should have a really good reason for discriminating by browser.

[logic_earth]

IE's non-standard conditional comments

Ummm it is just a comment there fore it is standard. What IE does when it encounters it may be non-standard but the comment itself is standard.

[fattyjules]

Quite right logic_earth. Post edited accordingly.