The Lean Library extension is a free tool which assists your library in delivering their services directly into your research workflow in more ways than one!
This add-on was removed from Firefox Browser Add-ons on
2025-05-26
- By:
- TfS Extensions
- Daily users:
- 13,877
- Rating:
- 2.88 (59)
- Version:
- 2025.3.0 Last updated: 2025-03-13
- Version code:
- 5903629
- Creation date:
- 2017-02-22
- Risk:
- High risk impact High risk likelihood
- Permissions:
- storage
- tabs
- alarms
- activeTab
- webNavigation
- contextMenus
- unlimitedStorage
- storage
- Host permissions:
- http://*/*
- https://*/*
- <all_urls>
- http://*/*
- Size:
- 11.57MB
- Email:
- su*****@leanlibrary.com
- URLs:
- Website ,Privacy policy
- Full description:
- See detailed description
- Source:
- Firefox Browser Add-ons
- Data ingested on:
- 2025-05-26
User reviews
Pros
- Provides useful access to scientific literature through university libraries.
- Helps replicate the "on campus" experience for accessing academic articles remotely.
- Generally effective in allowing access to articles and literature.
- Responsive company and support for institutional customers.
Cons
- Significantly slows down browser performance, causing lag especially on popular sites.
- No easy way to disable or manage the extension per-site, with ineffective or missing off switches.
- Breaks functionality of some non-academic websites, causing glitches or errors.
- Persistent and sometimes intrusive pop-ups even on pages where login is unnecessary.
- Installation and login process can be confusing or non-functional for some users.
Recent reviews
It's buggy, and it breaks some websites like: search dot nixos dot org
by Ku*****, 2025-04-29
by Fi*****, 2025-03-21
by Si*****, 2025-02-17
Extension safety
Risk impact
Risk impact measures the level of extra permissions an extension has access to. A low risk
impact extension cannot do much harms, whereas a high risk impact extension can do a lot of
damage like stealing your password, bypassing your security settings, and accessing your
personal data. High risk impact extensions are not necessarily malicious. However, if they
do turn malicious, they can be very harmful.
Lean Library requires some sensitive permissions that could impact your browser and data security. Exercise caution before installing.
Risk impact analysis details
- Critical Grants access to browser tabs, which can be used to track user browsing habits and history, presenting a privacy concern.
- Critical ****** ****** ** *** ********* ****** * *********** ******** **** ** ** *** ******* *** ****** **** **** *** ******* *****
- High ****** ********* ** * ****** ******** ******** ********** * ******* ******* *****
- High ******* ******* **** *** ****** ***** *** ***** ** ******* **** ********* ********* ** * *********** *****
Risk likelihood
Risk likelihood measures the probability that a Firefox add-on may turn malicious.
This is determined by the publisher and the Firefox add-on reputation on
Firefox Browser Add-ons, the amount of time the Firefox add-on has been
around, and other signals about the
Firefox add-on. Our algorithms are not perfect, and are subject to change
as we discover new ways to detect malicious extensions. We recommend that you always
exercise caution when installing a Firefox add-on.
Lean Library may not be trust-worthy. Avoid installing if possible unless you really trust this publisher.
Risk likelihood analysis details
- Critical This extension is not longer available in the store
Upgrade to see full risk analysis details
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