New referrer tracking protection when Strict Tracking Protection is enabled, and in Private Browsing.Web compatibility improvements for Firefox's SmartBlock feature.
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Firefox users on Mac OS are prompted to finish installation if they run the browser from a mounted.Firefox's PDF Viewer supports filling out XFA-based forms, which some governments and banks use.See our full coverage of the new insecure downloads blocking feature of Firefox here.
Confirm that you will be careful if the warning prompt is displayed. Load about:config in the Firefox address bar. The preference dom.block_download_insecure can be toggled to allow insecure downloads again, by setting it to False. Insecure downloads are blocked by defaultįirefox blocks insecure downloads by default now (non-secure downloads on secure webpages). See our full coverage of Firefox's new tab unloading feature here. Mozilla hopes that the feature will reduce the number of memory-related crashes that users of Firefox experience. Tabs are unloaded based on last access time, memory usage and other attributes. It is an automated feature that will unload tabs if available "system memory is critically low". Unload tabs on Windows when memory is critically lowįirefox includes a new tab unloading feature on Windows. Tip: open this test site in your browser to see if it supports AVIF. The Firefox implementation supports still images, "with colorspace support for both full and limited range colors, and image transforms for mirroring and rotation", but no animated images. It is an open format that offers "excellent compression" and has no patent restrictions. AVIF support is enabled by default in Firefox 93. Mozilla planned to enable AVIF support in Firefox 92, but postponed the release.
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