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blog.mozilla.org

What's new in Firefox this June, and what's next on the Firefox roadmap | The Mozilla Blog

Firefox has been busy introducing updates across productivity, privacy and AI. From Project Nova and browser-wide AI controls to expanded privacy protectio
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Firefox Release Version: 152.0.4
Release Date: June 30, 2026

FTP Download Page:
(32-bit) Directory Listing: /pub/firefox/releases/152.0.4/win32/en-US/
(64-bit) Directory Listing: /pub/firefox/releases/152.0.4/win64/en-US/

32-bit and 64-bit Download Page: Mozilla Firefox Web Browser - Download Firefox in your language - Mozilla

Release Notes: Firefox Release Notes




Firefox Release Candidate Version: 152.0.4 Build 1 (RC1)
Release Date: June 29, 2026

FTP Download Page:
(32-bit) Directory Listing: /pub/firefox/candidates/152.0.4-candidates/build1/win32/en-US/
(64-bit) Directory Listing: /pub/firefox/candidates/152.0.4-candidates/build1/win64/en-US/

Directory Listing: Directory Listing: /pub/firefox/candidates/




Firefox BETA Version: 153.0b9
Release Date: July 06, 2026

FTP Download Page:
(32-bit) Directory Listing: /pub/firefox/releases/153.0b9/win32/en-US/
(64-bit) Directory Listing: /pub/firefox/releases/153.0b9/win64/en-US/

32-bit and 64-bit Download Page: Mozilla Firefox Beta Web Browser - Download Firefox Beta in your language - Mozilla

Release Notes: Firefox Release Notes




Firefox Nightly Version: 154.0a1
Release Date: June 15, 2026

32-bit and 64-bit Download Page: Mozilla Firefox Nightly Web Browser - Download Firefox Nightly in your language - Mozilla

FTP Download Page: Directory Listing: /pub/firefox/nightly/mozilla-central/

Release Notes: Firefox Nightly Release Notes

 
Last edited:
Click to expand...
The FF Nova Customise UI page seems to be 'partly' fixed in Nightly_154.0a1 (it now shows at full height, but padding seems to be missing around the browser container).

The new interface still appears to allow all the usual CSS customisations as with the non Nova interface (helpful for those of us who like to stick with a more traditional interface!).
Nightly_154.0a1.webp
 

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das10 said:
The new interface still appears to allow all the usual CSS customisations as with the non Nova interface (helpful for those of us who like to stick with a more traditional interface!).
Click to expand...
My userChrome.css is full of customizations to get an acceptable UI. As soon as Mozilla makes the use of that impossible, I'll be gone (after using Firefox almost from the beginning of it).
 

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Manufacturer/Model
Custom Build
CPU
Intel Core i9 12900KF
Motherboard
ASUS ROG Maximus Z690 Hero
Memory
Corsair 64GB DDR5 Vengeance C40 5200Mhz
Graphics Card(s)
ASUS GeForce RTX 3090 ROG Strix OC 24GB
Sound Card
OnBoard
Monitor(s) Displays
Acer Predator XB323UGP 32" QHD G-SYNC-C 144Hz 1MS IPS LED
Screen Resolution
2560 x 1440
Hard Drives
1x Samsung 980 Pro Series Gen4 250GB M.2 NVMe
1x Samsung 980 Pro Series Gen4 500GB M.2 NVMe
2x Samsung 980 Pro Series Gen4 2TB M.2 NVMe
PSU
Corsair AX1200i 1200W 80PLUS Titanium Modular
Case
Corsair 4000D Black Case w/ Tempered Glass Side Panel
Cooling
Noctua NH-U12A Chromax Black CPU Cooler, 4x Noctua 120mm Fans
Keyboard
Logitech MK545
Mouse
Logitech MX Master 3
Internet Speed
Fixed Wireless 150mbps/75mbps
Browser
Firefox
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Kaspersky
Other Info
Thrustmaster TS-PC RACER
Fanatec CSL Elite Pedals with the Load Cell Kit
Yamaha Amp with Bose Speakers

My Computers My Computers

System One System Two

  • At a glance

    Windows 11 Pro for WorkstationsIntel i7-8700K 5 GHz64 GB (4x16GB) G.SKILL TridentZ RGB DDR4 3600...ASUS ROG-STRIX-GTX1080TI-O11G-GAMING (11GB GD...
    OS
    Windows 11 Pro for Workstations
    Computer type
    PC/Desktop
    Manufacturer/Model
    Custom self build
    CPU
    Intel i7-8700K 5 GHz
    Motherboard
    ASUS ROG Maximus XI Formula Z390
    Memory
    64 GB (4x16GB) G.SKILL TridentZ RGB DDR4 3600 MHz (F4-3600C18D-32GTZR)
    Graphics Card(s)
    ASUS ROG-STRIX-GTX1080TI-O11G-GAMING (11GB GDDR5X)
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    Integrated Digital Audio (S/PDIF)
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    2 x Samsung Odyssey G75 27"
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    2560x1440
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    1TB Samsung 990 PRO M.2,
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    Microsoft Defender
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