Team Remote ASP Debugger 

ASP Debugging Tool: Set Breakpoints, Watch Variables, Edit and Debug your ASP code. Vbscript and Javascript Debugging Languages Fully Supported.
debugger asp error asp debugger javascript code vbscript javascript debugger debug vbscript vbscript debugger debug asp vbscript debug debug javascript

Tiny Toolbar 

Small but powerful web browser tool that appears near the address bar (The box near the top of the screen where usually type web addresses to surf the Web).
internet explorer browser tool bar toolbar addon plugin button