PwdHash2

Automatically generates per-site passwords if you prefix your password with @@ or F2. Alternate version to original PwdHash add-on to fix issues in Firefox 66 and onwards, added optional more secure hashing algorithm and highlight password field.

PwdHash2 - Automatic Per-Site Password Generator

PwdHash2 is a Firefox add-on that automatically generates per-site passwords if you prefix your password with @@ or press F2 beforehand. It prevents JavaScript from reading your password as it is typed and generates the same password at each subdomain. PwdHash2 also offers optional more secure hashing algorithm and the ability to store a user-specified salt and iteration count.
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Add-on stats

By: GWu
Users: 69
Rating: 5.00
(5)
Version: 1.0.1 (Last updated: 2019-12-08)
Creation date: 2019-04-22
Weekly download count: NaN
Firefox on Android: No
Risk impact: Moderate risk impact
Risk likelihood:
Low risk likelihood
Manifest version: 2
Permissions:
  • storage
Size: 110.26K
URLs: Website

Ranking

# 11,702 ▲ 44
Other rankings
#21 in algorithm keyword 2

Other platforms

Not available on Chrome
Not available on Android
Not available on Edge
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Add-on summary

Analyze keywords

Automatically generates per-site passwords if you prefix your password with @@ or press F2 beforehand. Prevents JavaScript from reading your password as it is typed. The same password will be generated at each subdomain: a.example.com matches b.example.com, a.example.co.uk matches b.example.co.uk, but a.co.uk and b.co.uk are different.

This is based on the Stanford PwdHash add-on, main changes to the original:

  1. Fixed defunct original version, caused by changes in Firefox 66.0.2 keypress event handling
  2. Highlight password field, if active
  3. Added option to change the hash algorithm from HMAC-MD5 to PBKDF2-SHA256 ( based on PwdHash-PoC )
  4. Added option to store a user-specified salt and iteration count.
  5. Added option to use legacy (Stanford PwdHash) mode by Shift-F2 or in the options
Hashed passwords can also be generated at https://gwuk.github.io/PwdHash2/

Development: https://github.com/GWuk/PwdHash2

User reviews

Thanks for updating the original to newer Firefox versions, however you did it.
by Mentor54, 2022-04-05
by Firefox user 14930481, 2019-12-09
by Vlad, 2019-09-26
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Add-on safety

Risk impact

PwdHash2 requires a few sensitive permissions. Exercise caution before installing.

Risk likelihood

PwdHash2 has earned a fairly good reputation and likely can be trusted.

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