To use this API you must have the "webRequestBlocking" API permission, as well as the normal permissions needed for the event listener (the "webRequest" permission and the host permission for the host). And instead of the last bit : var (-webextension-toolbar-image, inherit) you'd obviously have to enter the path to the replacement icon. Doing this ensures that the filter is created prior to the attempt to load from cache, thereby avoiding the optimized cache. If your extension needs to filter scripts, create your filter in webRequest.onBeforeRequest. Data from this cache is not available in a form useful to extensions. So assuming this code is in background. This optimized byte cache overrides the normal request caching. browser.browserAction should be called in a background script and not in a content script like youre doing. You typically call this function from a webRequest event listener.įirefox uses an optimized byte cache for script requests. It's the extension's responsibility to write and close or disconnect the stream, as the default behavior is to keep the request open without a response.
#Firefox webextension replace gbrowser full
The stream filter gives the web extension full control over the stream, with the ability to monitor and modify the response. chrome (auto polyfilled) opera (auto polyfilled) firefox. This example adds an ondata listener which replaces WebExtension Example in the response with WebExtension WebExtension Example using the replace(). Here are 27 public repositories matching this topic. Modern extensions follow WebExtension standard and are most often written in HTML, JavaScript, and CSS. They are downloadable through the Firefox Add-on website.
#Firefox webextension replace gbrowser generator
Use this function to create a webRequest.StreamFilter object for a request. If you want to get started quickly check out the yeoman generator for this project. Star Firefox Extensions are add-ons that allow users to customize their web browser from Mozilla. Differences between API implementations.
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