Available for a few hours on the Mozilla server and waiting to be made official later today, Firefox 140 It's now available for download. This is one of those updates that doesn't attract much attention, since many of the new features have been implemented "under the hood" and others are for developers, but we also find some useful ones for general users.
For example, it is now possible download tabs. We don't always want to close a tab to keep track of its contents, nor do we want it to consume resources. In those cases, we can choose the new option that appears by right-clicking on it and send it to sleep.
Other new features in Firefox 140
The vertical tabs Now they offer greater flexibility: you can visibly adjust the space dedicated to your pinned tabs by dragging the divider. This allows you to keep your crucial windows always at hand without sacrificing unnecessary space—ideal for those managing multiple projects simultaneously.
Personalization takes on a new importance with the search engines. Need to add that specialized search engine? Just right-click on any supported search field or go to Settings > Search > Add to manually enter the URL. This freedom also extends to the Extensions- You can now remove the shortcut button from the toolbar for a cleaner interface. If you hide it, don't worry; the extensions panel is still accessible from the main menu.
The smart translations Now they prioritize only visible content during the process, dramatically speeding up loading. The remaining text will be dynamically translated when loading. scrolling, balancing speed and utility.
The Arabic users will celebrate the new integrated dictionary for spell checking, while in Italy, Poland and Austria the practical one is activated address autocompletionYou will also notice the absence of the icon Pocket in the toolbar and its integrations, resulting from the progressive closure of the service.
More for developers
For developers and technically curious people, Firefox rolls out significant improvements: support for aria-keyshortcuts on all operating systems, implementation of the CookieStore API for asynchronous cookie management, and the innovative Custom Highlighting API which allows you to style arbitrary ranges of text (although text decoration will come later). The new event pointerrawupdate It offers ultra-low latency for applications that require pinpoint precision in movements, such as graphics editors or games.
The Service Workers now operate in incognito mode thanks to encrypted storage, allowing more websites to run tasks in the background. In terms of security, the improved serialization of HTML attributes neutralizes mXSS attacks by automatically escaping critical symbols (< and >). In addition, the elements h1 will look uniform in any context (article, aside, hub o section), Meanwhile he Inspector for developers adds advanced DOM searches with match filters and support for pseudo-class states.
Now available
Firefox 140 can now be downloaded since official website, and will soon update the official repository packages of the most popular Linux distributions and their flatpak and snap packages.