Best Price Finder by Infinite Loop
Find hidden discounts on Amazon. Amazon Shipping Help allow to find best deals upto 90% discount.
Available on Firefox for Android™Available on Firefox for Android™
3 Users3 Users
Scan the QR code to open this extension in Firefox for Android
Extension Metadata
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About this extension
🔍 Best Price Finder compares the same product across 16 Amazon marketplaces directly from the product page.
When you visit an Amazon product page, Best Price Finder checks supported marketplaces and brings price, coupons, shipping, delivered total, differences, ratings and price history into one compact widget.
No ASIN copying and no manual tab-by-tab searching.
🤝 AFFILIATE DISCLOSURE
Best Price Finder participates in Amazon affiliate programs. When you open an Amazon offer through the extension, we may earn a commission from qualifying purchases at no additional cost to you.
🌍 16 AMAZON MARKETPLACES
Compare prices across 16 Amazon stores in Europe, the Americas and Asia-Pacific. Choose which marketplaces to check and save your preferences.
💶 COMPARE THE REAL COST
For each marketplace, when data is available, the comparison table shows:
• product price
• available coupon
• shipping cost or shipping status
• comparable total
• difference from the current marketplace
• Amazon rating, stars and review count
Prices can be displayed in their local currency or normalized to one currency. When an FX conversion is required, converted amounts are treated as estimates.
🏆 BEST PRICE
The offer with the lowest comparable total is highlighted with a Best price badge, making it easy to identify while still taking shipping and coupons into account.
📊 GOOD, AVERAGE OR HIGH PRICE
When at least three reliable comparable offers are available, Best Price Finder shows where the current marketplace price sits relative to the other prices found at that moment.
This insight uses current cross-market prices, not historical price data. Very small price spreads are treated as neutral to avoid misleading classifications.
🚚 SHIPPING & DELIVERY
When possible, Best Price Finder distinguishes between free, paid, conditional, unknown and unavailable delivery.
Offers that cannot be delivered are visually faded and excluded from normal price comparisons. Marketplaces without a usable offer remain accessible in a collapsible section.
⭐ AMAZON RATINGS
The total price can also show the average Amazon rating, proportionally filled stars and review count when available.
📈 PRICE HISTORY
The widget can display a price-history chart through supported third-party services when available. Historical data remains separate from the current-price assessment.
💬 CUSTOMER REVIEW INSIGHTS
When Amazon provides its customer review summary panel, Best Price Finder can integrate it into the widget for easier access.
⚙ CUSTOMIZABLE
Choose which marketplaces to compare, how currencies are displayed, whether shipping should be included in totals, and whether price history and review insights are shown.
🔒 PRIVACY & SECURITY
Best Price Finder does not require its own account and does not send your data to the developer's servers.
To provide its features, the extension communicates directly with selected Amazon marketplaces and, when needed, services used for exchange rates and price-history charts.
The extension uses local code only, loads no remote executable scripts and includes no advertising or tracking system.
Note: prices, coupons, availability and shipping costs may change at any time. Always confirm the final amount shown by Amazon before purchasing.
When you visit an Amazon product page, Best Price Finder checks supported marketplaces and brings price, coupons, shipping, delivered total, differences, ratings and price history into one compact widget.
No ASIN copying and no manual tab-by-tab searching.
🤝 AFFILIATE DISCLOSURE
Best Price Finder participates in Amazon affiliate programs. When you open an Amazon offer through the extension, we may earn a commission from qualifying purchases at no additional cost to you.
🌍 16 AMAZON MARKETPLACES
Compare prices across 16 Amazon stores in Europe, the Americas and Asia-Pacific. Choose which marketplaces to check and save your preferences.
💶 COMPARE THE REAL COST
For each marketplace, when data is available, the comparison table shows:
• product price
• available coupon
• shipping cost or shipping status
• comparable total
• difference from the current marketplace
• Amazon rating, stars and review count
Prices can be displayed in their local currency or normalized to one currency. When an FX conversion is required, converted amounts are treated as estimates.
🏆 BEST PRICE
The offer with the lowest comparable total is highlighted with a Best price badge, making it easy to identify while still taking shipping and coupons into account.
📊 GOOD, AVERAGE OR HIGH PRICE
When at least three reliable comparable offers are available, Best Price Finder shows where the current marketplace price sits relative to the other prices found at that moment.
This insight uses current cross-market prices, not historical price data. Very small price spreads are treated as neutral to avoid misleading classifications.
🚚 SHIPPING & DELIVERY
When possible, Best Price Finder distinguishes between free, paid, conditional, unknown and unavailable delivery.
Offers that cannot be delivered are visually faded and excluded from normal price comparisons. Marketplaces without a usable offer remain accessible in a collapsible section.
⭐ AMAZON RATINGS
The total price can also show the average Amazon rating, proportionally filled stars and review count when available.
📈 PRICE HISTORY
The widget can display a price-history chart through supported third-party services when available. Historical data remains separate from the current-price assessment.
💬 CUSTOMER REVIEW INSIGHTS
When Amazon provides its customer review summary panel, Best Price Finder can integrate it into the widget for easier access.
⚙ CUSTOMIZABLE
Choose which marketplaces to compare, how currencies are displayed, whether shipping should be included in totals, and whether price history and review insights are shown.
🔒 PRIVACY & SECURITY
Best Price Finder does not require its own account and does not send your data to the developer's servers.
To provide its features, the extension communicates directly with selected Amazon marketplaces and, when needed, services used for exchange rates and price-history charts.
The extension uses local code only, loads no remote executable scripts and includes no advertising or tracking system.
Note: prices, coupons, availability and shipping costs may change at any time. Always confirm the final amount shown by Amazon before purchasing.
Rated 0 by 0 reviewers
Permissions and data
Required permissions:
- Access your data for www.amazon.fr
- Access your data for www.amazon.de
- Access your data for www.amazon.es
- Access your data for www.amazon.it
- Access your data for www.amazon.com.be
- Access your data for www.amazon.nl
- Access your data for www.amazon.co.uk
- Access your data for www.amazon.com
- Access your data for www.amazon.pl
- Access your data for www.amazon.ca
- Access your data for www.amazon.com.mx
- Access your data for www.amazon.com.br
- Access your data for www.amazon.co.jp
- Access your data for www.amazon.in
- Access your data for www.amazon.com.au
- Access your data for www.amazon.sg
Optional permissions:
- Access your data for www.amazon.fr
- Access your data for www.amazon.de
- Access your data for www.amazon.es
- Access your data for www.amazon.it
- Access your data for www.amazon.com.be
- Access your data for www.amazon.nl
- Access your data for www.amazon.co.uk
- Access your data for www.amazon.com
- Access your data for www.amazon.pl
- Access your data for www.amazon.ca
- Access your data for www.amazon.com.mx
- Access your data for www.amazon.com.br
- Access your data for www.amazon.co.jp
- Access your data for www.amazon.in
- Access your data for www.amazon.com.au
- Access your data for www.amazon.sg
- Access your data for api.exchangerate-api.com
- Access your data for graph.keepa.com
Required data collection, according to the developer:
- Browsing activity
- Location
- Website content
More information
- Add-on Links
- Version
- 2.3.9
- Size
- 207.92 KB
- Last updated
- 16 hours ago (Nov 14, 2026)
- Related Categories
- License
- All Rights Reserved
- Privacy Policy
- Read the privacy policy for this add-on
- Version History
- Add to collection
The developer of this extension asks that you help support its continued development by making a small contribution.