The MDN top level page for addons used to give an overview over the different extension types (since FF57 only webextensions are supported). Components.utils.import this is for restartless/XUL (legacy) extensions. const { Cu } = require(“chrome”); this is for SDK extensions. Neither will work in webextensions. Unlike the other extension types webextensions are restrictive, they … Read more
The same-origin policy (SOP) appplies to ordinary web pages, not browser extensions, even if they are written in JavaScript. What does “different server” mean when the extension code does not origingate from a server? (The extension script might have some kind of orgin, like chrome-extension://longhashidentificationstr, but not an traditional domain/origin.) To communicate with any Web … Read more
Actually you can’t click on the element since it’s not a web page element. However you can create a profile for firefox and include addons in that profile that is launched by the webdriver applications. This will allow you to have access to Firebug or other addons. I’m not sure of the interaction between the … Read more
You can do it using flexbox. Here’s a fiddle I created for you: https://jsfiddle.net/x56hayht/ ul { display: flex; flex-direction: column; } ul li:first-child { order: 5; } ul li:nth-child(2) { order: 4; } ul li:nth-child(3) { order: 3; } ul li:nth-child(4) { order: 2; } <ul> <li>1</li> <li>2</li> <li>3</li> <li>4</li> <li>5</li> </ul> According to csstricks: … Read more
The .xpi file must use only “deflate” compression or uncompressed The zip implementation within Firefox only supports uncompressed files or files compressed with the “Deflate” algorithm. You will need to create the .zip archive using the compression method “Deflate” instead of the “LZMA” which you are currently using. How to do so will depend on … Read more
Do you mean that require() is not resolved? You need to either add require.js to your project or enable Node.js Globals predefined library in Settings/Languages and Frameworks/JavaScript/Libraries. (Edited settings path by @yurik) In WebStorm 2016.x-2017.x: make sure that the Node.js Core library is enabled in Settings (Preferences) | Languages & Frameworks | Node.js and NPM … Read more
Firefox add-ons generally run in a scope where the global window object is not defined (if it is defined depends on how the portion of your code that is currently running was entered). If you want to use methods/objects associated with a window object, the easiest way is to obtain a reference to an appropriate … Read more
Yes it possible to interact with other add-ons, given the right circumstances. My test case here will be com.googlecode.sqlitemanager.openInOwnWindow(), which is part of the SqliteManager addon. In newer builds (I’m using Nightly), there is the Browser Toolbox. With it is is as simple as opening a toolbox and executing com.googlecode.sqlitemanager.openInOwnWindow() in the Console. You may … Read more
My problem is: can I perform modification on DOM (so: the HTML document that is returned by server) before the page even starts displaying? Yes, javascript execution starts before the page is rendered the first time. The DOM Parser does notify mutation observers, so you can immediately strip elements as soon as they are added … Read more
You are in for a bumpy ride, but this is quite possible. The main problem is that IE and W3C expose completely different interfaces to selections so if you want cross browser functionality then you basically have to write the whole thing twice. Also, some basic functionality is missing from both interfaces. Mozilla developer connection … Read more