New Update Firefox Stable Release

This is so annoying—you can't set 24 hour clock for all widgets, just the clock one...

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Firefox 152.0.1 will be officially released today

Reportedly, the following bug fixes:
  • Fixed frequent crashes affecting users with Intel Raptor Lake processors. (Bug 2039575)
  • Fixed an issue on macOS where choosing a PDF option, such as \"Save as PDF\", from the system print dialog would send the job to your printer instead of saving a file. (Bug 2047850)
 
Firefox 152.0.2 released:
  • Fixed some Settings section headings showing placeholder text instead of the translated name in certain languages. (Bug 2047983)
  • Fixed New Tab content not matching the browser's display language after it was changed. (Bug 2046945)
  • Fixed a regression that could break playback of some MP4 video files. (Bug 2047467)
  • Fixed a performance regression that could slow down sites performing many encryption and decryption operations at once, such as Proton Drive. (Bug 2046401)
 
Firefox 152.0.6 released:

New​

Smart Window includes several enhancements:
  • Select text on a page and get quick access to summarize, explain, and more using the built-in assistant. (Bug 2034921)
  • Added a row of shortcuts to New Tab, making it easier to get back to sites. (Bug 2048338)
This feature is part of a progressive roll out.

Fixed​

  • Fixed an issue that prevented email tracking protection from being disabled in the redesigned Firefox Settings. (Bug 2049331)
  • Fixed a hang that could occur after using a file picker dialog on macOS 26. (Bug 2053177)
  • Fixed the homepage not loading for some enterprise configurations that set it using a legacy autoconfig format. (Bug 2047962)
  • Various security fixes.
 
Firefox 153.0 official release today:
  • High Dynamic Range (HDR) video playback is now available on Windows - this feature needs HDR mode enabled for the display in Windows Settings - Display. Laptop displays that only offer "HDR video streaming" are not supported at this time. Some videos recorded on phones in certain orientations are currently not shown as HDR.
  • Containers let you keep separate parts of your online life (work, shopping, personal, banking) logged into different accounts in the same browser window, but keep your cookies and ad tracking isolated inside each container.
 
  • High Dynamic Range (HDR) video playback is now available on Windows - this feature needs HDR mode enabled for the display in Windows Settings - Display. Laptop displays that only offer "HDR video streaming" are not supported at this time. Some videos recorded on phones in certain orientations are currently not shown as HDR.
  • Containers let you keep separate parts of your online life (work, shopping, personal, banking) logged into different accounts in the same browser window, but keep your cookies and ad tracking isolated inside each container.
Surely this can't be everything "new" and improved in this release. Right?

There are much more changes in release notes.
 
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Is Firefox 153 identical to Firefox ESR 153? Is the only difference the release schedule and long-term support, or can the ESR version be configured with stricter restrictions since it is primarily designed for enterprise environments?

Yes, at least that's how it's been historically.
The most striking difference is that ESR often supports a given OS for a longer period of time.
If by “restrictions” you mean “policies,” I'm not aware of any.:unsure: