Overview
Sync your Facebook Marketplace and Gumtree sessions with SyncSellr for cross-marketplace listing management.
SyncSellr - Marketplace Cookie Sync enables furniture and vehicle resellers to manage listings across Facebook Marketplace and Gumtree from a single dashboard. This extension syncs your marketplace session cookies with the SyncSellr web app (https://syncsellr.com), allowing the platform to publish and manage listings on your behalf. Instead of manually logging in to each marketplace, you sign in once in your browser and the extension securely captures and transmits those sessions. How it works: 1. Sign in to your SyncSellr account via the extension popup 2. Visit Facebook Marketplace or Gumtree and sign in normally 3. Click "Sync Cookies" in the extension popup 4. SyncSellr can now publish and manage listings on those marketplaces for you Key features: - One-click cookie sync for Facebook Marketplace and Gumtree - Automatic background re-sync every 4 hours - AES-256-GCM encrypted cookie storage - Only captures cookies from Facebook and Gumtree (no other sites) - No browsing history, page content, or passwords collected Requires a SyncSellr account at https://syncsellr.com
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Details
- Version1.0.0
- UpdatedFebruary 27, 2026
- Size147KiB
- LanguagesEnglish (United Kingdom)
- DeveloperKaylum JohnsonWebsite
27 Trentham Lawns Salford M6 6QN GBEmail
admin@syncsellr.comPhone
+44 7564 074658 - TraderThis developer has identified itself as a trader per the definition from the European Union and committed to only offer products or services that comply with EU laws.
Privacy
SyncSellr - Marketplace Cookie Sync has disclosed the following information regarding the collection and usage of your data. More detailed information can be found in the developer's privacy policy.
SyncSellr - Marketplace Cookie Sync handles the following:
This developer declares that your data is
- Not being sold to third parties, outside of the approved use cases
- Not being used or transferred for purposes that are unrelated to the item's core functionality
- Not being used or transferred to determine creditworthiness or for lending purposes
Support
For help with questions, suggestions, or problems, visit the developer's support site