LONGBOX — for Marvel Unlimited icon

LONGBOX — for Marvel Unlimited

by KyronsCave · Tools
Manifest V3 Free
View in Chrome Web Store Data as of 20 Oct 2026

Reading cockpit for the Marvel Unlimited web reader: recently read, bookmarks, status, page progress (metadata only).

Users
32
+9 in 30 days
Rating
5.0 / 5
unchanged in 30 days
Ratings
3
0 in 30 days
Store rank
#128K
#107K among extensions
Version
1.0.28
updated 17 Aug 2026

Users

monthly, 3 months
01632Jul 2026Sep 2026Oct 2026
Latest, 20 Oct 2026: 32 usersMove the mouse over the chart for any month

Ratings count

monthly, 3 months
023Jul 2026Sep 2026Oct 2026
Latest, 20 Oct 2026: 3 ratingsMove the mouse over the chart for any month

The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.

About LONGBOX — for Marvel Unlimited

LONGBOX is your reading cockpit next to the official Marvel Unlimited web reader. The desktop reader lacks this organizing layer — LONGBOX adds it without changing how you read. • Auto-tracks every issue you read — zero clicks, follows "Read Next" binges too. • Per-issue page progress. • Dashboard: recently read, cover wall, bookmarks, status (reading/want/finished), series progress, search & filters, "where was I" notes. • Popup quick access to keep reading. • Export/import (JSON), German & English. Privacy first: LONGBOX stores only metadata (title, issue id, cover URL, page number, notes) locally on your device. It does not read or store comic images, transmits nothing, tracks nothing, and circumvents no copy protection. You keep reading in the official reader. Note: LONGBOX is an unofficial, independent tool and is not affiliated with Marvel or Disney.

Growth

WindowUsersChangeRatingsRating
7 days0+0.0%00.00
30 days+9+39.1%00.00

Chrome Web Store search rankings

Where LONGBOX — for Marvel Unlimited appears when people search the store, with the 30 day change
Search phrasePosition30 days
marvel#25+10

Version history

11 versions recorded
1.0.2817 Aug 2026
1.0.2414 Aug 2026
1.0.2112 Aug 2026
1.0.205 Aug 2026
1.0.194 Aug 2026
1.0.181 Aug 2026
1.0.1730 Jul 2026
1.0.1629 Jul 2026

Details

Category
Tools
First seen
23 Jul 2026
Size
96 KB
Languages
de, en, es, fr, it, pt-BR, ro, ru
Pricing
Free
Privacy policy
gist.github.com
Extension ID
iondgiijaibggaidfdkpeocllbnhanon

Permissions and risk

Moderate riskimpact 2, likelihood 2
Permissions
storagetabs

Alternatives to LONGBOX — for Marvel Unlimited

Extensions that rank for the same store searches or share the Tools category, ordered by users