firefox-webextensions

问题 I am working on a simple add-on that can parse the text of a page, example twitter.com, and then send it an external script and receive the response. The current workflow that I have is like this: Connect to background script from content script. Then Connect to native App from background script and receive the response Format and pass the response to the content script which can finally make changes to the DOM. I am receiving the following error when connecting to background script. Error:

问题 I am trying to develop a Firefox extension which involves copying an image to the clipboard. In the past, it appears that this was accomplished using the clipboard addon sdk. However, this is being deprecated so I need to find another way to copy an image to the clipboard. The docs mentioned using document.execCommand('copy') but I cant get that to work for copying images. From searching the web it seems that its normally not possible to copy an image to the clipboard in Javascript but I was

问题 Looks like chrome.storage.local is continuing to store any data even if an extension was uninstalled. This behaviour is not observed in Chrome, only in Firefox. Any ideas about how to fix it? 回答1: This was bug 1213990, which is fixed in Firefox 51. 来源： https://stackoverflow.com/questions/39117890/removing-a-firefox-web-extension-does-not-clear-chrome-storage-local

问题 So I couldn't find anything that talked about using chrome.* or browser.* specifically. In some of the WebExtension examples it uses browser.* ( browser.runtime.getManifest(); ) https://developer.mozilla.org/en-US/Add-ons/WebExtensions/API/runtime/getManifest, and in others it uses chrome.* ( chrome.notifications.create ), https://developer.mozilla.org/en-US/Add-ons/WebExtensions/API/notifications. I'm not entirely sure what's the difference. Is it contextual? Both chrome.* and browser.* are

问题 I have developed a WebExtension for Firefox and my website works with the extension as a prerequisite. I need to check programmatically whether the extension is installed or not and if not ask the user to install it. I am not able to find a way how to check this operation of whether my extension is already installed in the user's browser. Editor note: Methods available in Firefox differ from those available in Chrome, so this question is not a duplicate. 回答1: Important note to begin with: A

问题 (Note, this is intended as self-answer Q&A for a problem I encountered) After trying to submit a WebExtension to Mozilla Add-Ons for public listing, the submission was rejected by a reviewer with the following message: Your add-on includes a JavaScript library file that doesn't match any versions known to us. We require all add-ons to use unmodified release versions. We accept JQuery/JQuery-UI libraries downloaded from 'ajax.googleapis.com', 'jquery.com' or 'jqueryui.com'; and used without

问题 My interest is handling sites only during heavy load times for autofills to work. For example, when a sale opens and the site is swarmed, it sometimes crashes. I need to catch the site errors, so I can reload the page from the background script. As described in Chrome Extensions: Background Script Catch Network and HTTP Errors, we can get the page load errors. Page load error can be due to network issues, site issues, DNS issues, and also due to site overload issues. All I want is to reload

问题 This is my current project: manifest.json : { "name": "Sample Commands Extension", "description": "Press Ctrl+Shift+U to send an event (Command+Shift+U on a Mac).", "homepage_url": "https://github.com/mdn/webextensions-examples/tree/master/commands", "manifest_version": 2, "version": "1.0", "background": { "scripts": ["background.js"] }, "commands": { "toggle-feature": { "suggested_key": { "default": "Alt+Shift+U" }, "description": "Send a 'toggle-feature' event to the extension" } } }

问题 Testpage: https://www.google.com It works in Chrome but in Firefox Nightly 52.0a1 it gives me this error when clicked on the notification: document.execCommand(‘cut’/‘copy’) was denied because it was not called from inside a short running user-generated event handler copyTextToClipboard() function was taken from Copy to Clipboard in Chrome Extension manifest.js { "description": "Test for JSON Notifiaction + Clipboard Copy", "manifest_version": 2, "name": "Test3", "version": "1.0",

问题 Reference to the answer for my previous question here. Briefly: When an error occurs in a navigation webRequest (e.g. a DNS lookup error), the URL to which the tab navigates is available in the url property of webNavigation.onDOMContentLoaded event for the navigation to the displayed error page, but the actual URL displayed (i.e. the about:neterror URL) is not available through other means. I want to follow the answer's method for getting the error page URL. I wrote this example code where I