64-bit
exemachine scopecdn.waterfox.com · publisher-owned- File name
- Waterfox Setup 6.6.17.exe
- SHA-256
- f59df2fd152afd476ad941a886a61878fec17b70d224197b229230a12e50c468
- Silent install
- -ms
Waterfox
by BrowserWorks · MPL-2.0
100/100how this is calculated
Fast and Private Web Browser
Record
- Latest version
- 6.6.17
- Release date
- 21 Jul 2026
- Official page
- https://www.waterfox.net/
- Package identifier
- Waterfox.Waterfox
Official downloads
These URLs are the ones BrowserWorks declares in its own manifest. We do not proxy or shorten them, and we do not host a copy.
Verify the file you downloaded
Run this against the file on disk. If the output does not match the hash below, the file is not what BrowserWorks published. Delete it.
Windows · PowerShell
Get-FileHash "Waterfox Setup 6.6.17.exe" -Algorithm SHA256macOS · Linux
shasum -a 256 "Waterfox Setup 6.6.17.exe"Expected output
f59df2fd152afd476ad941a886a61878fec17b70d224197b229230a12e50c468
Got a different hash, or one you cannot place? Paste it into the hash checker and it will tell you which program and version it belongs to, past releases included.
Install Waterfox silently
The unattended switch below is the one BrowserWorks declares in the installer manifest, not one we guessed by trying flags.
64-bit · machine scope · publisher-declared
.\Waterfox Setup 6.6.17.exe -msRun it from the folder holding the downloaded file, in a terminal opened as administrator when the package installs for all users. Silent means no window and no prompts, so check the exit code rather than waiting for something to appear: 0 is success and 3010 means it worked but wants a reboot.
Download Waterfox for Mac
The macOS build as Homebrew declares it, with the same treatment as the Windows side: the publisher's own URL and a hash to check it against.
- Version on Homebrew
- 6.6.17
- File name
- Waterfox 6.6.17.dmg
- Download URL
- https://cdn1.waterfox.net/waterfox/releases/6.6.17/Darwin_x86_64-aarch64/Waterfox%206.6.17.dmg
- SHA-256
- befa28b2bce215befcc31a59144fd558c94bcc424adada26b53b2a11ba4ff8f2
- Install with Homebrew
- brew install --cask waterfox
How we scored this 100 out of 100
| Signal | Finding | Points |
|---|---|---|
| SHA-256 hash published | 1 of 1 installers ship a SHA-256 hashWithout a published hash there is no way to prove the file you downloaded is the file the publisher built. | 30 / 30 |
| Binary provenance | 1 on a domain owned by the publisherThe strongest signal against a repackaged installer: the file should come from the publisher, not from a mirror nobody vouches for. | 35 / 35 |
| Served over HTTPS | 1 of 1 over HTTPSAn installer fetched over plain HTTP can be modified in transit. | 15 / 15 |
| Release recency | last release about 1 months agoSoftware that has not shipped in years accumulates unpatched vulnerabilities. | 15 / 15 |
| Licence declared | MPL-2.0A declared licence tells you what you are actually allowed to do with the software. | 5 / 5 |
Opens 9 file types
Extensions Waterfox registers itself to handle.
Is Waterfox safe to download?
Yes, in the sense we can actually verify: the installer downloads from waterfox.com, which is a domain we have tied to BrowserWorks.
The installer on this page comes with the SHA-256 BrowserWorks declared, so you do not have to take our word for it: hash the file you downloaded and compare.
What this does not tell you is whether the software itself is any good, or whether you want what it does once installed. A publisher can ship something you would rather not run and the download is still authentic. We answer the question we can measure and leave the other one to you.
If Windows says “Windows protected your PC” when you run it, that is SmartScreen reporting reputation, not a malware verdict — it shows up on perfectly legitimate software from small publishers and on releases that are simply new. The reverse matters more: no warning does not mean the file was checked.
How the 100/100 score is calculated · why the source matters more than the reputation
Install Waterfox with winget
Windows ships with a package manager, and this program is in it. The identifier below is the one Microsoft's repository uses, which is also where the download URL and hash on this page come from.
Install
winget install --id Waterfox.Waterfox --exactUpgrade later
winget upgrade --id Waterfox.WaterfoxWhy --exact: without it winget matches on name as well as identifier, and a search that returns more than one package makes it stop and ask rather than install. Pinning the identifier is what makes the command safe to put in a script.
Not installing anything, or getting an error back? The commands that actually come up covers upgrading everything at once, what --include-unknown is for, and why winget can be missing from a machine that should have it.
Old versions of Waterfox20 with hashes
The version history of Waterfox, each release with the download URL the publisher declared at the time and the SHA-256 to check it against. Useful when an update breaks something and you need to downgrade to a build that worked.
We do not host any of these files and never re-upload them, which is the difference between this and an old-version download site.
6.6.16.1
released 09 Jul 2026D70B78977B3C2E908F0747B9D2B160DEBAF0093B6E735E6D9A1C6E5C10B4D0B5
6.6.16
released 08 Jul 2026B85957C5D6E3FB8E7775E2FF7D259A7BB8FF7DC1FAF75149FA748E0012A337C2
6.6.15
released 16 Jun 202665CC8C1150EC6587BB75EC3FF83314C6F82E7D3A426E892F7906637482FD8FEF
6.6.14
released 03 Jun 2026228AE1B8A18208058D4A30BB136ABC9F5B38C838512300CC08267EF2F8FFEA17
6.6.13
released 19 May 20264451F53EE2A6421559DA4FF7D4BF5DC41A42CEF4E7E22984AAD1A591B4F76E98
6.6.12
released 21 Apr 202651C46AEA4066371C00CF1765C99BD551B7CC5E22C27F7E397F231A33E5DA3DB0
6.6.11
released 08 Apr 202633A51457140B88C22C5879061A67E24B937A4941A146178D4D796BCC68E7CC51
6.6.10
released 24 Mar 202658D5EFE853C745EC7BF5497D432B62BD3103AF5E9562312104BFFD87695836AA
6.6.9
released 24 Feb 20268D68148958CF2AC287E21ADF2DB753086A89C96F3FF448423665EFDF79F10C4F
6.6.8
released 12 Jan 20260C20D781EE5529AB7208737F8983601D7199904262F8E23665A9B06A9ED5350F
6.6.7
released 19 Dec 2025F4F169114C1C6C6268D128358BCB6DD2F855DC12E7BC5FB25B9C0A5B0C2DFDD3
6.6.6
released 09 Dec 202551EEC316DF6B1BD06F75BA215BA8ECFDB81D4941A3712CE37D397315C493DAAE
6.6.5.1
released 25 Nov 2025D09768D2164DED9A4612EE152E642240E108D7B6A6DA48D9F109B589B87F28CB
6.6.5
released 10 Nov 202538A2884FA0B42C426555C6AFF2BC81A6DD7CE236AAE6392371FEE481CEE1F8CB
6.6.4
released 09 Oct 2025A26778AC6DF17B2347B38E64E82AAF93EC3724E2F507EF0C7E97CDFBEAF296C2
6.6.3
released 11 Sept 2025070CD03171D69B4B963B92B927C6E8477CE8FD7B9B8A1BEFCB0FD015A75A98F3
6.6.2
released 29 Aug 20252EEB25B7EF6156AEB77983080B640A288D78A16499B872095C6F2F9BF505611C
6.6.1
released 21 Aug 202536AD3A4EC62BB088330AD9AEF8234D0056AC81D603095BF28B87F35D0550A9D5
6.6.0
released 19 Aug 202536C0D264EB852AE0735517BCB9EB7EEE2DDDE170C5E25369713EE5AD5E25AC98
6.5.11
released 28 Jul 20252CF65DF5DE83DF0F3DC6AC7A2FB9744E3D87EC96094F586C0DC1085B3249E12F
Earlier releases7 more
The file names, so you can tell what you have. Their hashes are in the hash checker and in the downloadable archive.
- 6.5.10Waterfox Setup 6.5.10.exe
- 6.5.7Waterfox Setup 6.5.7.exe
- 6.5.6Waterfox Setup 6.5.6.exe
- 6.5.3Waterfox Setup 6.5.3.exe
- 6.5.2Waterfox Setup 6.5.2.exe
- 6.5.1Waterfox Setup 6.5.1.exe
- 6.5.0Waterfox Setup 6.5.0.exe
Publishers take old builds offline without warning, so a link here can stop working even though the hash stays correct forever. If you already have the file, the hash is what matters: it tells you whether what you have is what they published.
Every version on record28
Every Waterfox version with a published manifest, newest first. The most recent ones are listed above with their file names and hashes.
- 6.6.17
- 6.6.16.1
- 6.6.16
- 6.6.15
- 6.6.14
- 6.6.13
- 6.6.12
- 6.6.11
- 6.6.10
- 6.6.9
- 6.6.8
- 6.6.7
- 6.6.6
- 6.6.5.1
- 6.6.5
- 6.6.4
- 6.6.3
- 6.6.2
- 6.6.1
- 6.6.0
- 6.5.11
- 6.5.10
- 6.5.7
- 6.5.6
- 6.5.3
- 6.5.2
- 6.5.1
- 6.5.0
Similar programs we index
Matched on the categories BrowserWorks and others declare in their own manifests, so the grouping is theirs rather than ours. Each one has its official URL and hash on the same terms as this page.
- Tor BrowserProtect yourself against tracking, surveillance, and censorship.
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- Proton VPNHigh-speed Swiss VPN that safeguards your privacy.
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More programs we index
Not related to Waterfox — just other entries, each with its own official URL and published hash.
- Microsoft Edge WebView2 RuntimeEmbed web content (HTML, CSS, and JavaScript) in your native applications with Microsoft Edge WebView2.
- Winaero TweakerWinaero Twеaker is essential software for every Windows 10, Windows 8 and Windows 7 user. It allows you to customize the appearance and behavior of the operating system in a flexible way.
- WinampThe legendary Winamp desktop player for Windows
- WinBoxSmall utility that allows administration of MikroTik RouterOS using a fast and simple GUI.
Where our data comes from
- macOS cask
- formulae.brew.sh/cask/waterfox