The result of a script is the last expression being evaluated. So in your example you could use: chrome.tabs.executeScript( null, {code:”var x = 10; x”}, function(results){ console.log(results); } ); This will log [10] to the extension’s console. results is actually an array of values because if the page has more than one frame you can … Read more
There’s a website doing it: crx4chrome.com
Updated for 2020: The recommended way nowadays is to use the Mutation Observer API. let observer = new MutationObserver(mutations => { for(let mutation of mutations) { for(let addedNode of mutation.addedNodes) { if (addedNode.nodeName === “IMG”) { console.log(“Inserted image”, addedNode); } } } }); observer.observe(document, { childList: true, subtree: true });
One thing that is important to know is that Content Scripts share the same DOM as the current page, but they don’t share access to variables. The best way of dealing with this case is, from the content script, to inject a script tag into the current DOM that will read the variables in the … Read more
Short answer is that you can’t, but if you want to open the popup in a new tab instead, this is how you would do it: Put this before you call show popup.onclick = function() { chrome.tabs.create({url : “popup.html”}); popup.cancel(); }
Due to a change spearheaded by Google, all extensions now must have an icon in the toolbar area or the “overflow” in the menu. Even if you don’t have a browser_action, your extension will display an icon (or failing that, a tile with extension name’s first letter). If you do not declare a browser_action, it … Read more
Set height in css for both html and body elements.
The feature request you linked to implies that there is no support for reading either: Unfortunately, this request is not trivial. (…) Regarding reading the Response Body: This is challenging from a performance perspective. (…) So overall, this is just not easy to achieve… So, no, there doesn’t seem to be a way for an … Read more
If you detach the Dev Tools (icon next to x in the top right corner) in a separate window, and press Ctrl+Shift+I while Dev Tools window is focused, you will invoke the Dev Tools for the Dev Tools window. As far as I am aware, it’s not possible for a docked configuration.
I was looking for the same thing. Thanks to the help of the user wOxxOm I’ve figured out what to change inside the manifest file. Here is an example of how to migrate manifest.json from v2 to v3. First thing is to change the manifest_version key from 2 to 3 //Manifest v2 “manifest_version”: 2 //Manifest … Read more