467765 - Excessive memory use when pasting large amounts of text into textarea

Status: NEW

(Core :: DOM: Core & HTML, defect, P5)

Description

[Steve Chapel]

Reproducible: Always

Steps to reproduce:
1. Paste about 10 MB of text into a textarea (for example, the Additional Comments box at the bottom of this page).

Expected results: Memory use increases by 10-40 MB
Actual results: Memory use increases by more than 100 MB

This problem was first pointed out in the MozillaZine forums: http://forums.mozillazine.org/viewtopic.php?p=5137045#p5137045

Comment 1

[Damian Shaw [Quan]]

Another way of generating this bug are to open a large text file with Firefox (where large makes Firefox unresponsive). 

I've seen this bug pop up on Mozilla Firefox irc with people having problems with it and have seen it myself many times.

Comment 2

[Damian Shaw [Quan]]

bug 467846 has been filed on the text file issue for now.

Comment 3

[Firefox Bug Husbandry Bot]

https://bugzilla.mozilla.org/show_bug.cgi?id=1472046

Move all DOM bugs that haven’t been updated in more than 3 years and has no one currently assigned to P5.

If you have questions, please contact :mdaly.