Lowvyn by Lowvyn

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Lowvyn version history - 25 versions

Be careful with old versions! These versions are displayed for testing and reference purposes.You should always use the latest version of an add-on.
Latest version
Version 7.12.0
Released Aug 2, 2026 - 162.36 KB
Works with firefox 142.0 and later, android 142.0 and later
- Live prices: Best Buy, Amazon, and Canada Computers pages now show the current price right away, refreshing any out-of-date saved price.
- Catches deep sale prices (door-crashers) correctly.
- Fix: Best Buy appliances and bundles now get a Lowvyn score.
Source code released under All Rights Reserved
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Older versions
Version 7.11.2
Released Jul 29, 2026 - 160.77 KB
Works with firefox 142.0 and later, android 142.0 and later
Bug fix for retrying to login.
Source code released under All Rights Reserved
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Version 7.11.1
Released Jul 27, 2026 - 159.96 KB
Works with firefox 142.0 and later, android 142.0 and later
Lowvyn 7.11.1

Fixed: the on-page Lowvyn card no longer shows "Track this product" for a product you already track. If an item is in your tracked list (and synced to your account), the card now shows it as "Tracked" instead of asking you to track it again. The card's tracked state now matches your Tracked Items list in the popup.
Source code released under All Rights Reserved
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Version 7.11.0
Released Jul 17, 2026 - 159.28 KB
Works with firefox 142.0 and later, android 142.0 and later
1. signupSource: "extension"- signupUser now sends it, so in-extension signups get proper acquisition attribution instead of landing NULL. The server already supports the field. Tested (asserts the
  request body: {email, password, signupSource: "extension"}).
2. 8-character password hint - the password field now has minlength="8" + placeholder "Password (at least 8 characters)", matching the server's rule. Short passwords are caught inline by the browser
  instead of a server round-trip.
Source code released under All Rights Reserved
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Version 7.10.0
Released Jul 9, 2026 - 158.84 KB
Works with firefox 142.0 and later, android 142.0 and later
Lowvyn 7.10.0

New: Canada Computers price tracking
- Lowvyn now supports Canada Computers, our fifth Canadian retailer. Turn it on from the Settings tab under "Add a store." Once enabled, the Lowvyn pill, deal score, and price history all work on
  Canada Computers product pages, alongside Amazon, Walmart, Best Buy, and Canadian Tire.
- New "Stores" section in Settings lets you choose which stores Lowvyn runs on, and add optional stores like Canada Computers with a single click.
Improvements:
- "Also available at" now only shows other stores, never the one you are already viewing.
- More accurate store labels on your tracked items.
- General reliability and stability improvements.
Lowvyn is free to use and built for Canadian shoppers.
Source code released under All Rights Reserved
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Version 7.6.2
Released Jun 3, 2026 - 131.96 KB
Works with firefox 142.0 and later, android 142.0 and later
Lowvyn v7.6.2 — Release Notes

What's new

Walmart pages now seed Lowvyn instantly. When you visit a Walmart product Lowvyn doesn't track yet, the extension shares the on-page product data so Lowvyn can score it on the spot. Previously, Walmart products would just show "we don't track this yet."

The score updates as you browse. Click between products on Walmart, Amazon, or Best Buy and the Lowvyn card now refreshes within ~1 second. Before, it would get stuck showing the previous product's score.

Better thumbnails on the Lowvyn website. Walmart products tracked via the extension now consistently carry a product image into your product history view.

Polish. Fixed button spacing in the expanded score card so "Buy via Lowvyn" no longer butts against the buttons above it.
Source code released under All Rights Reserved
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Version 7.5.0
Released May 27, 2026 - 125.11 KB
Works with firefox 142.0 and later, android 142.0 and later
Added
- "View full history on Lowvyn" secondary button in the expanded score card. The overlay's expanded card now carries an outlined indigo button below the primary "Buy via Lowvyn" affiliate CTA that deep-links to the matched product page at
lowvyn.com/product-detail/<id>. Rendered only when the scoreboard payload carries an itemId (no dead links). Opens in a new tab so the user's shopping session isn't interrupted. Tagged ?ref=extension so GA can segment this traffic distinctly from organic
/product-detail visits. Telemetry event overlay_product_link_click fires with the itemId for attribution. The extension can only ever show one retailer's view — this gives users a one-tap path to the cross-retailer comparison and full price-history chart on
the website. Outlined-button style (cta-secondary) was chosen over a filled one so the primary affiliate CTA stays unambiguously primary.

Changed
- Release build now hard-fails on missing extension token. Every v7.x release shipped to date (v7.0..v7.4.1) bundled the literal placeholder LOWVYN_EXTENSION_TOKEN as the X-Lowvyn-Client-Token value because build_extension.sh warned-and-continued when
  LOWVYN_EXTENSION_TOKEN was unset (confirmed by unzip -p on the v7.4.1 release zip). After CLIENT_AUTH_ENFORCE=true flipped on the server (2026-05-02), the placeholder fails client-auth for every gated /api/items call from logged-out users. The bypass is now
  closed: build_extension.sh exits 1 if the env var is unset, equals the placeholder literal, or is shorter than 16 chars; it greps dist/*.js after substitution and unzips the final zip to verify the placeholder has been replaced everywhere. New
  build_token_substitution.test.js pins the contract with 10 source-invariant tests so the bypass can't sneak back in. Local development without a token continues to work via npm run build (sideload-unpacked, no substitution). See
  lowvyn-docs/current-implementations/client-auth.md → "Extension token resolution" for the bootstrap path.
Source code released under All Rights Reserved
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Version 7.2.1
Released May 4, 2026 - 113.57 KB
Works with firefox 142.0 and later, android 142.0 and later
Fixed the bug for Amazon products tracking.
Source code released under All Rights Reserved
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Version 7.2.0
Released May 1, 2026 - 113.16 KB
Works with firefox 142.0 and later, android 142.0 and later
Minor bug fixes of the last release.
Source code released under All Rights Reserved
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Version 7.1.0
Released Apr 30, 2026 - 110.87 KB
Works with firefox 142.0 and later, android 142.0 and later
Lowvyn 7.1.0
- Sessions now last 30 days. No more daily sign-ins.
- If your session does expire, you'll get a clear "please sign in again" notification instead of a silent failure.
- Fixed: the Lowvyn score pill no longer shows on retailer "page not found" pages.
- Fixed: items you remove on lowvyn.com now disappear from the extension too.
- Behind the scenes: groundwork for "this is cheaper at another retailer" callouts coming soon.
Source code released under All Rights Reserved
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Version 7.0.0
Released Apr 27, 2026 - 104.69 KB
Works with firefox 142.0 and later, android 142.0 and later
v7.0, Deal Overlay
• New: Lowvyn pill on Amazon.ca / Walmart.ca / BestBuy.ca product pages with deal score and verdict
• New: per-retailer toggle (mute on Walmart for grocery shopping, etc.)
• New: opt-in anonymous usage analytics to help us improve
• New: cleaner affiliate handling via lowvyn.com/r redirect
Source code released under All Rights Reserved
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Version 6.0.0
Released Apr 24, 2026 - 90.83 KB
Works with firefox 109.0 and later
Extension v6.0.0: passive discovery, currency fix, category sync, refresh overhaul
New features:
- Passive product discovery: badge on icon + "Track this?" banner in popup
- Lowvyn Score and Deal Verdict displayed on item cards
- Full currency mapping for 18 Amazon domains (CAD, USD, GBP, EUR, JPY, etc.)
- Breadcrumb category extraction for Amazon, Walmart, Best Buy
- Server item pull on login and sync (items tracked via website appear in extension)

Behaviour changes:
- Non-CA items blocked from server sync (tracked locally only, "Non-CA retailer" badge)
- Refresh All: server items refreshed via API (fast), local items in parallel batches of 5
- Per-item 15s fetch timeout, partial success reporting ("Refreshed 19/21, 2 skipped")
- SyncItemPrice re-tracks on 403 (ownership lost)
- Best Buy badge colour differentiated from Walmart (yellow vs blue)
- Walmart's bare '$' currency now defaults to USD instead of staying as a symbol

Updated:
- About page rewritten with product vision, features, CA vs international explanation
- Manifest version bumped to 6.0.0
- Popup timeout increased to 2 minutes with a friendly background message
Source code released under All Rights Reserved
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Lowvyn by Lowvyn

Latest version

Version 7.12.0

Older versions

Version 7.11.2

Version 7.11.1

Version 7.11.0

Version 7.10.0

Version 7.9.1

Version 7.9.0

Version 7.8.2

Version 7.8.1

Version 7.8.0

Version 7.7.2

Version 7.6.2

Version 7.6.1

Version 7.6.0

Version 7.5.0

Version 7.4.1

Version 7.3.1

Version 7.3.0

Version 7.2.2

Version 7.2.1

Version 7.2.0

Version 7.1.0

Version 7.0.0

Version 6.0.0

Version 5.1.0