Let’s Write a Web Extension - Mozilla Hacks - the Web.
Don't use these techniques to develop new add-ons. Use WebExtensions instead. If you maintain an add-on which uses the techniques described here, consider migrating it to use WebExtensions. Starting from Firefox 53, no new legacy add-ons will be accepted on addons.mozilla.org (AMO) for desktop Firefox and Firefox for Android.
Notes. Writing to a document that has already loaded without calling document.open() will automatically call document.open.Once you have finished writing, it is recommended to call document.close() to tell the browser to finish loading the page. The text you write is parsed into the document's structure model.
There are a few different add-ons that will let you draw on Web pages in Firefox, similar to (but not exactly the same as) Edge's inking feature. I like Web Paint, which is also available for.
Earlier Firefox had the feature but now it is removed. And if we talk about Chrome, it never had the feature, to begin with. However, there is a workaround to deal with the issue and have the ability to add bookmarks. In this post, we will have you to add notes to bookmarks on Chrome and Firefox. Method 1: Add Notes to Bookmark Name.
Privilege escalation scenarios if there are write permissions on the Firefox installation directory; Persistence if there are write permissions for the Firefox installation directory. However, where Firefox is installed to the Program Files directory, the persistence can be only achieved if the attacker has administrator access to the target machine (while we would like to have userland.
In Firefox, type about:config into the address bar and hit enter. You should see a huge list of configuration properties. You should see a huge list of configuration properties. Find the setting named network.negotiate-auth.delegation-uris (the easiest way to do this is to type that into the filter box at top).
The WebExtensions API. In 2015, Mozilla announced that they would be deprecating XPCOM and XUL based addons in favor of their new WebExtensions API based on the Google Chrome Extension API.There were some vocal critics of this shift because it meant that some existing add-ons would be discontinued, but this was tremendously positive news for add-on and extension developers.