Firefox 90 enhances private browsing with the new SmartBlock 2.0

Mozilla Browser is rapidly increasing its efforts to prevent blocking. Mozilla Firefox 90 launched today. The latest version of Mozilla Browser, increasingly focused on privacy, adds improved printing to PDF performance, with exceptions in HTTPS only mode, about a third-party page to help identify compatibility issues reported by in-app applications. SmartBlock feature that protects between location tracking while making sure that login still doesn't work.

There's also a new Background Update for Windows, which lets a background applet check, download, and install Firefox updates while the browser is running.

SmartBlock 2.0

The latest version of the Mozilla SmartBlock privacy feature allows users to configure their tracking protection settings without the need for separate websites, without having multiple websites. The updated version appears to target Facebook login, which is increasingly being used across the web as an external authenticator.

Firefox blocks Facebook scripts by default because Mozilla identifies Facebook (correctly) on Facebook domains in its list of known third-party trackers. Unfortunately, blocking Facebook scripts means breaking third-party Facebook logins - for example, the Facebook login feature found on With SmartBlock 2.0, Facebook scripts on third-party sites are disabled, as before - but when the user clicks "Continue with Facebook", this user's interaction with the Facebook script helps SmartBlock 2.0 unblock it. The blocking is unblocked just in time so that the Facebook login is successful - without the user having to contact their tracking protection settings. Ads

Firefox is faster The Y axis indicates "number of responses completed later than this time" - note that in FF89, response time sets under 50ms are significantly higher. Mozilla is hard to detect, but this graph can improve Javascript-controlled timing - FF89 has more events in most clusters under 17ms than FF86. Mozilla

Mozilla's internal benchmarks show significant speed improvements in 2021 - According to Mozilla's own tests, Firefox has been 10-30% faster than previous versions over the past 89 months. In particular, the Mozilla team mentions improvements in the following areas:

Typing in the URL bar or in a Docs editor (eg Google Docs, Office 365) Opening the site menu (eg Google File menu) Documents keyboard Controls In browser-based video games to discuss performance goals and added benefits, Mozilla defines three levels of browser responsiveness: immediate, tangible, and unpleasant response time, with a maximum latency of 50 milliseconds. and 1000 milliseconds for the first two levels. Mozilla went on to say that not only does this mean more delays, but the entire site - and at worst, the browser interface itself - becomes unusable for more than a second at any time.

Remarkably, Firefox 89 manages over 40% immediate response times - and that's only 30% in Firefox 86 alone.


For an immediate response, the calculations performed by the browser itself are not the only problem - no matter how quickly the browser generates new data, the user cannot understand it. As long as the screen displays it. With a screen refresh rate of 60Hz, this means that a new frame is displayed approximately every 17 seconds - giving the browser just 3 frames to meet the 50ms target for this level of response.

In earlier versions of Firefox, user input occurs in frame 0, the "color" process, where the browser draws new content, and then occurs in frame 1 - finish blending (when the new content drawn is actually It is delivered to the operating system and displayed on the user's screen.) It does not occur before more than two frames. These are all three frames that we can set within 50 milliseconds that Mozilla responds to. Set it up right away!


With the launch of Firefox 89, the Firefox graphic pipeline update suggested by Marcus Strange significantly improves the situation - now, the graphic can occur in the same frame as user input. It makes installation possible. Frame sooner. This makes the maximum responsive reaction about 17 milliseconds faster than before - a third of the automatic automatic window.

Small but noticeable delays

Most of the visible delays in the browser are due to time spent in JavaScript code - mostly because JavaScript engine developers spend more time running Synthesize benchmarks to improve web applications And - global frameworks. In SpiderMonkey, the Firefox JavaScript engine. Experiments conducted to improve performance on real-world websites rather than metrics improved array iterations, resulting in increased performance in Firefox 89. Mozilla continued to make important predictions about SpiderMonkey through 2021, citing better object architecture and faster loops as examples. Ted Campbell, Ireland Eye, Steve Fink, Ian de Moog, and Dennis Palmero thanks Mozilla for their generous support of SpiderMonkey. The class, jank, has its own set of improvements - in particular, the hanger reporter. Part of the hard work of Florian Quèze and Doug Thayer, Mozilla now receives private benchmarking information when using browser performance pools - including the tracking stacks that are displayed alternately in the main section. There is Firefox.

The new tool now provides insights and performance improvements—for example, Mozilla has found that accessibility features are unnecessary for most Windows users who use a touchscreen. Accessibility features are important to users who need them, but they are important extra work for the browser when enabled.

To some extent, with the help of James Teh, the number of users who have enabled non-essential access features has been significantly reduced - and the number of interruption reports associated with them has also been reduced.

Firefox 90 enhances private browsing with the new SmartBlock 2.0
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