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Preview of Lazarus: Form Recovery (MV3+)

Lazarus: Form Recovery (MV3+) by richardnpaul

Protect against losing form data, comments, or rich text drafts. Local, encrypted (if you want) form recovery.

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Available on Firefox for Android™Available on Firefox for Android™
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About this extension
Trigger Warning!: I used an LLM to turn the old addon into a spec, then got the LLM to change the spec to support modern browser versions, so implement Manifest V3 support, and then got the LLM to implement the new spec. It missed a number of glaring features which I caught. I got the LLM to implement testing, coverage and mutation testing to try to make the addon as robust as I can but the reason that it's listed as experimental is that I'm going to be using this, testing out the features and functionality before removing this flag. But fair warning, this project has had a heavy hand of AI involved in it, with a decent amount of human oversight and engineering background to guide it.

A reimplementation of the Lazarus Form Recovery addon which tracks inputs into form fields and stores them in a datastore locally, including multiple versions over time. You can apply a master password to control access to the form data contents and it has options that, by default, do not track password and certain financial data fields.

The old plugin seemed to use a custom/non-standard encryption approach but this just uses standard crypto libraries, it has updated dependencies and is written in typescript to try to improve the certainty of the code working as expected (it's not a guarantee as it's just JS in the end underneath).
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Permissions and data

Required permissions:

  • Access browser tabs
  • Access your data for all websites

Optional permissions:

  • Access your data for all websites

Data collection:

  • The developer says this extension doesn't require data collection.
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Version
0.0.7
Size
89.89 KB
Last updated
3 days ago (Sep 17, 2026)
Related Categories
  • Other
License
Apache License 2.0
Version History
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