{"id":183518,"date":"2026-09-30T04:54:41","date_gmt":"2026-09-30T02:54:43","guid":{"rendered":"https:\/\/prohoster.info\/blog\/news\/reliz-firefox-157-s-modernizirovannym-interfejsom-polzovatelya"},"modified":"2026-09-30T04:54:48","modified_gmt":"2026-09-30T02:54:48","slug":"firefox-157-released-with-a-modernized-user-interface","status":"publish","type":"post","link":"https:\/\/prohoster.info\/en\/blog\/news\/firefox-157-released-with-a-modernized-user-interface","title":{"rendered":"Firefox 157 Release with a Modernized User Interface","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"
The release of the Firefox 157 web browser has taken place, and updates for previous long-term support branches \u2014 153.4.0, 140.17.0, and 115.42.0 \u2014 have been established. As part of the new two-week release cycle, the Firefox 158 branch has entered beta testing, with its release scheduled for October 13. <\/p>\n
Key innovations in Firefox 157 (1, 2, 3): <\/p>\n
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A new user interface has been proposed, developed as part of the Nova project. The changes include rounded buttons for tabs, menus, and the address bar, as well as adjustments to the spacing between all interface elements. Access has been simplified for tab grouping, vertical tabs, and the side-by-side viewing mode of two tabs. Updated icons now look cleaner and more balanced in both light and dark themes. New built-in light and dark themes have been added. To disable the new interface, the setting 'browser.nova.enabled' can be turned off on the about:config page.
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The ability to enable compact mode has been restored, in which the toolbar and tab bar occupy minimal screen space, leaving more room for the content of web pages.
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A new implementation of the sidebar supporting vertical tabs has been activated for all users. For users of the old panel, the layout of elements is closer to the view where the panel switcher is at the very top. The option to show the sidebar has been removed from settings, but the old panel can still be restored by disabling the sidebar.revamp parameter on the about:config page. Support for the old panel is scheduled to be removed by the end of 2027.
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In the settings and in the dropdown panel that appears when clicking on the shield icon in the address bar, a warning about the possibility of intercepting encrypted traffic has been implemented, which appears if the feature for saving encryption keys to log is enabled by setting the environment variable SSLKEYLOGFILE.
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In video calls via WebRTC, hardware acceleration for decoding the AV1 format has been implemented.\n
For users in Austria, Belgium, the Czech Republic, Denmark, Finland, Hungary, Ireland, Luxembourg, the Netherlands, Norway, Poland, Portugal, Slovakia, Spain, Sweden, and Switzerland, a mechanism for displaying contextual recommendations and sponsored suggestions has been implemented. Recommendations can be disabled in the settings 'Settings > Search > Firefox Suggests'.\n
The Tab key now primarily focuses on the input area in the address bar and the search field, rather than on the search engine selection button.\n
The Amazon search service has been removed from the list of built-in search engines.\n
Dialogs shown when calling JavaScript functions alert(), confirm(), and prompt(), the autocomplete dropdown, and the color and date picker forms now match the set light or dark color scheme of the page.\n
A new function, at-rule(), has been added to the CSS @supports rule, which allows determining the browser's support for various @-rules. For example, '@supports at-rule(@scope)'.\n
The CSS properties overscroll-behavior, overscroll-behavior-block, overscroll-behavior-inline, overscroll-behavior-x, and overscroll-behavior-y now support the value 'chain', which allows for seamless switching to scrolling in the parent element after reaching the end of the content in the nested block, but disables effects such as bounce when scrolling to the end.\n
In Firefox for Android, the ability to return to previous search results has been implemented when clicking on the search field on the homepage. A gesture for removing items on the Downloads page using a 'swipe' has been added. <\/ul>\n
In addition to new features and bug fixes, Firefox 157 resolves 76 vulnerabilities, 38 of which have been assigned a high severity level. Most vulnerabilities are caused by memory management issues, such as buffer overflows and access to already freed memory areas. These issues could potentially allow for the execution of malicious code when accessing specially crafted pages. \n Source: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"
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