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Bookmark & Tab Session Manager | Personalized & Customizable | CoW

By Yellow Sparks Ltd

Customizable bookmark & tab session manager to organize links, save tabs, personalize your workspace, and keep bookmarks private.

View Chrome Web Store

Time on the storeUnder 6 monthsA rough range, not an exact date

Store users6As shown on the Chrome Web Store

Chrome Web Store ratingNot rated yetNo store ratings yet

Last store update8 Sep 2026Version 1.1.1.19, 31 days ago

Inside the extension

Bookmark & Tab Session Manager | Personalized & Customizable | CoW developer product preview 1

Product image 1 of 5

Reviews

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Permissions & access

Access levelMedium

Can see the address and title of every open tab.

What it’s allowed to do, not what it actually does. Not a safety rating.

Permissions 6

Sensitive1

See the address and title of every open tabtabs

Standard5

Save its own settingsstorage
Store large amounts of its own dataunlimitedStorage
Read and change your bookmarksbookmarks
Run tasks on a schedulealarms
Work on the tab you click it onactiveTab

Members also see when a new version asks for new access.

Website access 8

www.google.com
gstatic.com and its subdomains
cowfiles.blob.core.windows.net
cavesofwonders.com
www.cavesofwonders.com
api.cavesofwonders.com
sync-api.cavesofwonders.com
api-app-management.yellowsparks.com

Extension ID: nhlgmohjnacffdeomfmoojndilpkappg
Package size: 1.61MiB
Manifest: Version 3

The maker

Yellow Sparks Ltd has 4 listings on the store. Updates most of their listings often.

Listings: 4
Combined store users: ≈98
Store Featured: 0
Updated in the last 90 days: 4 of 4

ChatGPT Conversation Booster - Bookmarks & More80 users · updated 11 days ago
Claude Booster - Prompts, Read Aloud & More7 users · updated 12 days ago
Tab Snapshot - Save, Restore & Auto Backup5 users · updated 35 days ago

Combined users can count the same person more than once. See all 4 listings

Ext Watch AI

Should you build in this niche?

One research report for Bookmark & Tab Session Manager | Personalized & Customizable | CoW. Reports come with Plus, Pro and Max.

Takeaway & demandCited takeaway and search volumes
Traffic & domainPopularity rank, visits and authority
Money & pricingPlans and prices from the maker’s site
ReviewsComplaints and praise, quoted
Competitors & ranksRank against the closest listings
Build opportunityWhat to build and how to position it

Every number shows its source and date
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