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uBlock Origin (/ ˈ j uː b l ɒ k / YOO-blok [5]) is a free and open-source browser extension for content filtering, including ad blocking.The extension is available for Firefox and Chromium-based browsers (such as Chrome, Edge, Brave, and Opera).
Obscure or mask content other than a running video. uBlock Origin: GPL-3.0: No No Yes Yes Wide-spectrum content blocker Blocking ads and filtering content via a paired blacklist and whitelist. Zoom Page WE: GPL-2.0: No No Yes Yes Accessibility computer vision syndrome (CVS)
Firebug can also log errors. Logging uses a Firebug JavaScript API. Firebug's JavaScript panel can log errors, profile function calls, and enable the developer to run arbitrary JavaScript. Firebug allows users to run JavaScript code through the command line and allows the user to log errors that occur in the JavaScript, CSS, and XML.
This meant that a legacy extension could read or modify the data used by another extension or any file accessible to the user running Mozilla applications. [15] But the current WebExtensions API imposes security restrictions. [16] Starting with Firefox 40, Mozilla began to roll out a requirement for extension signing. [17]
Web workers are currently supported by Chrome, Opera, Edge, Internet Explorer (version 10), Mozilla Firefox, and Safari. [4] [5] [6] Mobile Safari for iOS has supported web workers since iOS 5. The Android browser first supported web workers in Android 2.1, but support was removed in Android versions 2.2–4.3 before being restored in Android 4 ...
Compared to writing a full-fledged Firefox extension, user scripting is a very modest step up in complexity from basic web programming. However, Greasemonkey scripts are limited due to security restrictions imposed by Mozilla's XPCNativeWrappers [ 23 ] For example, Greasemonkey scripts do not have access to many of Firefox's components, such as ...
Lightbeam (called Collusion in its experimental version) was an add-on for Firefox that displays third party tracking cookies placed on the user's computer while visiting various websites. It displays a graph of the interactions and connections of sites visited and the tracking sites to which they provide information.
In 2006, InformationWeek recommended Flashblock, and described it as one of the most popular Firefox extensions. [ 9 ] [ 10 ] Lifehacker advocated its use in 2009. [ 11 ] It was reviewed by download.com in 2011, [ 12 ] by Softpedia , [ 13 ] and in 2016 Tomsguide.com included it in its "40 Best Firefox Browser Add-Ons".