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A few examples rely on APIs that are only available in pre-release versions of Firefox. Where this is the case, the example declares the minimum version that it needs in the strict_min_version attribute of the browser_specific_settings key in the extension's manifest.json file.
17 maj 2012 · This JavaScript will answer the 'what to do with the api' by changing the background image of a div to the background of the current day's bing image. function PullBackground() {. var ajaxRequest = new XMLHttpRequest(), background = '';
26 lip 2024 · This key enables the definition of experimental theme key properties for the Firefox interface. These experiments are a precursor to proposing new theme features for inclusion in Firefox. Experimentation is done by: creating a stylesheet that defines mappings between internal CSS selectors for Firefox UI elements and arbitrary CSS variables.
Manifest V3 (MV3) is the umbrella term for several foundational changes to the WebExtensions API in Firefox. The name refers to the declared manifest_version key in each extension’s manifest.json file. The Manifest V3 changes apply to extensions for Safari, Firefox, and Chromium-based browsers – such as Chrome, Edge, and Opera.
The extension that includes an experiment defined in this way automatically gets access to the experimental API. An extension may also use an experimental API implemented in a different extension by including the string experiments.name in the permissions` property in its manifest.json file.
Use the theme key to define a static theme to apply to Firefox. If your manifest.json file includes the theme key, the extension is assumed to be a theme and any other WebExtension keys are ignored. If you want to include a theme with an extension, please see the theme API.
8 paź 2024 · Learn about the Response.json () method, including its syntax, code examples, specifications, and browser compatibility.
