287804 - Pre and Post load javascript option

Status: VERIFIED WONTFIX

(Firefox :: General, enhancement)

Description

[Yusuf Motiwala]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.7.6) Gecko/20050317 Firefox/1.0.2
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.7.6) Gecko/20050317 Firefox/1.0.2

I am requesting a feature for execution of some user defined javascript before
and after loading of web page (as defined by user). This feature can be very
useful and powerful for users to disable or modify behaviour of nasty javascript
used by many webpages. 

Following option can be given
 - pre-loading javascript
 - post-loading javascript
 - General and/or URL specific script (this says that specific script should be
executed on specific URL, and general script for rest)



Reproducible: Always

Comment 1

[Steve England [:stevee]]

http://greasemonkey.mozdev.org/ maybe?

Comment 2

[Ian Graham]

What exactly would you like such scripts to do?  It might be easier to specify
the goals you have for the functionality -- could then either implement in
javascript, or some other way if more appropriate...

Comment 3

[Mike Connor [:mconnor]]

Greasemonkey or something like it is the answer here.  This is well removed from
being something we'd do in the core UI.

Comment 4

[Yusuf Motiwala]

why can't this be in core UI? I am sure it will be great and distinguishing 
feature to have

Comment 5

[:Gavin Sharp [email: [e-mail]]]

For about 10% of users, maybe.