jQuery conflict between Greasemonkey script and page [duplicate]
问题 This question already has answers here : Can I use multiple versions of jQuery on the same page? (7 answers) jQuery in Greasemonkey 1.0 conflicts with websites using jQuery (3 answers) Closed 6 years ago . I'm writing an add-on for Greasemonkey and using jQuery 1.9.1 (via @require ). But there's already jQuery 1.1.2 on the website: <script type="text/javascript" language="JavaScript" src="jquery.js" >... When I run the script it says "TypeError: jQuery.browser is undefined". I tried adding