Is it possible to detect page modification through userscripts?
103277
Can a website know if I am running a userscript?
134096
Can we ignore visitors without JavaScript enabled?
62437
How do I safely "eval" user code in a webpage?
109834
Apply a Greasemonkey/Tampermonkey/userscript to an iframe?
23714
How may I reference the script tag that loaded the currently-executing script?
11878
Identifying Between Refresh And Close Browser Actions
151955
Modify HTML of loaded pages using chrome extensions
125996
Watching for DOM changes, the elegant way
136460
Best way to detect when a user leaves a web page?
11277
How to convert a bookmarklet into a Greasemonkey userscript?
145789
Detect if the url in an iFrame has changed
153176
How to detect a textbox's content has changed
105220
How can I write a program that can detect by itself that it has been changed?
59428
How to override the alert function with a userscript?
114631
Tell screen reader that page has changed in Backbone/Angular single-page app
72178
Detect version of JavaScript
112055
Browser detection in JavaScript?