Firefox crashes rendering large html table (20,000+ rows)

try defining the table with a fixed width

<table style='table-layout:fixed'>

This will allow the browser to render the table without it trying to recompute the width on each new row addition.

[UPDATE]

I am not sure what your data looks like but I can do

<table style='table-layout:fixed'><tr><td style="width:150px;"></td><td style="width:150px;"></td><td style="width:150px;"></td><td style="width:150px;"></td><td style="width:150px;"></td></tr><%    for (int ix = 0; ix < 30000; ix++)    {        Response.Write("<tr>");        Response.Write("<td><img src='stickman1.bmp'></td>");        Response.Write("<td>" + RandomString() + "</td>");        Response.Write("<td><img src='stickman2.bmp'></td>");        Response.Write("<td>" + RandomString() + "</td>");        Response.Write("<td><img src='stickman3.bmp'></td>");        Response.Write("<td><a href='#' onclick='blah();'>stick man!</a></td>");        Response.Write("</tr>");    } %> </table>

within Firefox 3.0.11. Although it takes awhile firefox will display it. It consumed 239MB of ram. RandomString() just returns a string of between 0 - 22 characters.

You might want to use pagination to sort that out :) I imagine my poor old laptop would die if Firefox tried to render 20k rows of tables. And it is a core2 with 4gb ram :P

Is it possibly something to do with your data? I just whipped up a simple ASP.NET page that creates a 50k row table and firefox renders it just fine.

protected void Page_Load(object sender, EventArgs e){    StringBuilder sb = new StringBuilder();    sb.Append("<table><tbody>");    for (int i = 0; i < 50000; i++)    {        sb.Append("<tr><td>My Name</td><td>my@email.com</td></tr>");    }    sb.Append("</tbody></table>");    Response.Write(sb.ToString());}