Description:
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1) upgrade (security patches) mozilla firefox
2) then after some times the \n and \t not working.
3) using echo "test1\n test2"; will give "test1 test2" result without new line.
4) i test the code on both firefox 1.0 and IE 6.0 but the result is same. 

php programming tool: Apache Friends xampp (php4 and 5, mysql,apache, etc) and i use it as it is without any changes.



Reproduce code:
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<?php
echo "test1\n test2\n \ttest3\n";
echo "test4\n"."test5\t"."test6";
?>

Expected result:
----------------
(actual result copy and paste from firefox 1.0)

test1 
test2 
 test3 
test4 
test5  test6

Actual result:
--------------
(actual result copy and paste from firefox 1.0)

test1 test2 test3 test4 test5 test6