260408 - Using search/highlight feature hangs on large text file and search string is 1 char

Status: RESOLVED DUPLICATE of bug 251862

(Firefox :: General, defect)

Description

[dan]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 5.0; rv:1.7.3) Gecko/20040913 Firefox/0.10
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.0; rv:1.7.3) Gecko/20040913 Firefox/0.10

Using "Edit->Find in This Page" with the Highlight feature turned on.
If searching a large text file and the search string is one character long,
Firefox will hang for a long time while trying to highligh all of the chars.
I think Highlight should refuse to highlight strings shorter than 2 characters.
This is especally true if the character is a often used one like the letter 'a'.

Reproducible: Always
Steps to Reproduce:
1. View a large text file 
   (eg. ftp://download.nvidia.com/XFree86/Linux-x86/1.0-6111/README.txt )
   or and lager local text file will do.  The above file has 145180 chars in it.
2. Do "Edit->Find in This Page" or "Ctrl+F"
3. Click "Highlight" and enter "a" in the Find box.

Actual Results:  
Browser hung.  I finally just killed it.

Expected Results:  
Maybe turn highlight off when the string is only 1 character.

May machine is a 1.1GHz AMD chip.  It's not the fastest machine, but it's not a
slug either.  I tried it on a shorter file with only 200 characters and a 1 char
search/highlight string works fine.

Comment 1

[Ryan Polk (Quark)]

*** This bug has been marked as a duplicate of 251862 ***