Chrome extension: Replace HTML before loading the page

Question

I have a question about how to change web pages with a Chrome extension. After reading some info I think the question is how to manipulating the DOM. Let's say I open www.stackoverflow with Chrome and want to replace the following line of code: and replace it with: My question is not if it's a smart thing to do, but how to do this? JavaScript questions and answers, JavaScript questions pdf, JavaScript question bank, JavaScript questions and answers pdf, mcq on JavaScript pdf, JavaScript questions and solutions, JavaScript mcq Test , Interview JavaScript questions, JavaScript Questions for Interview, JavaScript MCQ (Multiple Choice Questions)

Answer 1

Try to modify you manifest's file run_at string. In the case of "document_start", the files are injected after any files from css, but before any other DOM is constructed or any other script is run. https://developer.chrome.com/docs/extensions/mv2/content_scripts/