Mozilla revealed a brand new model of its open supply browser Firefox at present. Firefox 136 is a giant replace that ships with a number of extremely requested options.
Highlights embrace assist for vertical tabs out of the field, a brand new Smartblock Embeds characteristic (extra about that later), redesigned sidebar, and HTTPS-First coverage.
Good to know: Firefox 128.8 ESR and 115.21 ESR are additionally obtainable. These prolonged assist releases give attention to bug fixes and safety updates.
Firefox 134: the key modifications
Vertical Tabs
Find it irresistible or hate it. There appears to be little middle-ground in the case of the place of tabs in browsers. One group likes the normal horizontal structure for tabs, the opposite prefers them vertical.
Vertical tabs supply some benefits, particularly on widescreen shows. Extra tabs and extra of a web page title might be displayed on the identical time with vertical tabs. They do additionally pave the way in which for superior group options, resembling hierarchic tabs that show in a tree-layout.
Firefox 136 customers can provide this a strive with just some clicks:
- Load about:preferences#common within the handle bar. You might also click on on Menu > Settings > Normal to get there.
- Scroll down till you come to the Browser Structure part.
- Examine “Present sidebar”.
- Activate the settings icon on the backside of the sidebar.
- Examine “vertical tabs” to allow the characteristic.
Uncheck the choice to return to horizontal tabs. The change is fast and doesn’t require a restart of the browser.
The equally long-awaited tab teams characteristic is just not a part of this launch.
Firefox SmartBlock Embeds defined
SmartBlock is a privateness and safety characteristic that’s built-in into Firefox’s Enhanced Monitoring Safety characteristic. Launched in Firefox 87, the principle aim was to handle points on webpages that have been attributable to the browser’s monitoring safety characteristic.
The core thought is to exchange the monitoring script with wannabees. They act sufficient like the unique to maintain all the pieces on the webpage intact, however don’t compromise person privateness as nothing is reported.
The improve offers Firefox customers choices to unblock sure social media embeds which are blocked by Firefox in strict and personal searching modes. Mozilla says that assist is proscribed in the intervening time however that further embeds with be added sooner or later.
So, if you wish to see a social media embed that’s blocked by default, you are able to do so now in Firefox.
Different modifications and fixes
- Now you can additionally allow the brand new sidebar structure for Firefox to entry numerous instruments and options from the sidebar.
- Mozilla switched Firefox to a HTTPS-First mannequin. Means, Firefox tries to improve any non-HTTPS web page by default to HTTPS. If that fails, it’ll fall again to HTTP to permit the connection.
- Clear searching knowledge and cookies dialog now helps deleting saved kind information,
- Firefox will transfer some background tabs on macOS to “decrease energy cores” to scale back power utilization.
- {Hardware}-accelerated HEVC playback is now supported on macOS.
- Firefox on Linux programs with AMD GPUs now has {hardware} video decoding enabled by default.
- Firefox is now obtainable on ARM64 on Linux.
- The built-in climate forecasts helps Mexico, Brazil, Argentina, and Chile now.
- Tackle auto-fill is enabled for customers within the UK.
Developer modifications
- The autocorrect world attribute permits autocorrection in editable textual content components.
- Intl.DurationFormat is now supported, enabling locale-sensitive formatting of durations.
- The Referer HTTP header is now despatched in requests following a web page refresh that redirects to a brand new web page.
- The utmost measurement of Information URLs has been elevated from 32MB to 512MB, matching the restrict for Chromium browsers.
- A subset of the Cookie Retailer API has been carried out.
- WebRTC can now ship and obtain video encoded utilizing the AV1 codec.
- WebRTC simulcast of screen-shared video with the H264 codec can also be supported (AV1, H264, and VP8 can now be used for simulcast).
Enterprise modifications
- Mounted Microsoft Entra SSO failing because of lacking headers.
- New desire community.http.basic_http_auth.enabled permits admins to disable Fundamental HTTP authentication
- ExtensionSettings coverage up to date to permit extensions in personal home windows.
Safety updates / fixes
Mozilla fastened a complete of 15 safety points and bugs in Firefox. The mixture severity score is excessive and Mozilla makes no mentions of exploits within the wild. A few of the safety points are bugs that would have been exploited sooner or later.
You may test the total checklist of patches right here.
Firefox 136.0 obtain and replace
Mozilla Firefox 136 is accessible already. The ESR-versions are additionally obtainable. Most Firefox installations ought to obtain the updates robotically. Directors who need the updates instantly can force-check for them.
That is performed by deciding on Menu > Assist > About Firefox within the browser. Firefox checks for updates and can set up the newest model, if there’s one.
Downloads are additionally supplied on Mozilla’s official web site.
Outlook
Firefox 137 is scheduled for a launch on April 1, 2025. The 2 ESR variations, 115.22 and 128.9, may even be launched on the day.
Extra data / sources
Closing Phrases
Mozilla is integrating options into Firefox {that a} vocal minority of customers have requested for a very long time. Now that vertical tabs are supported, it’s tab teams that each one eyes are set on.
What’s your tackle the path that Mozilla is heading with Firefox? Depart a remark to hitch the dialogue beneath.
Abstract

Article Title
Firefox 136 launches with vertical tabs, however one requested characteristic continues to be lacking
Description
Firefox 136 Secure is now obtainable. The browse integrates the long-requested vertical tabs characteristic amongst different issues. It additionally fixes safety points.
Writer
Martin Brinkmann
Writer
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