LeechBlock Requires Restart

LeechBlock is a simple productivity tool designed to block those time-wasting sites that can suck the life out of your working day. All you need to do is specify which sites to block and when to block them.

Rated 5 out of 5 stars (671)
58,646 users

LEF View Requires Restart

Allows you to view local LEF files - LEF is a standard format used in the EDA industry

Rated 5 out of 5 stars (1)
10 users

Legacy Test Pilot (Outdated)

The legacy Test Pilot program has been replaced, and this add-on is no longer useful. If you're interested in testing new features in Firefox please join the new program at https://testpilot.firefox.com

Rated 4 out of 5 stars (71)
42,656 users


Dodatek umożliwia integrację z Legislatorem.

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28 users

Lesono Screen Sharing Add-on

Screen Sharing Extension for Lesono service

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7 users

Let Me Google That For You Addon

Select, generate & share lmgtfy links.

Rated 5 out of 5 stars (3)
40 users


Add a 30-second delay when loading certain time-wasting websites.

Rated 4 out of 5 stars (3)
27 users


Calcule la letra del DNI o NIE español

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27 users

LGWORKS toolbar Requires Restart

LGWORKS toolbar allows searching the lgworks website using a...

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1 user

Lichess Berserker Compatible with Firefox 57+

Lichess berserker for popular chess website lichess.org
It adds a toggle button that enables auto-berserking

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1 user

Lighter Compatible with Firefox 57+

Adds a button to open current page with Google's Web Light proxy.
You can also use Alt+Z shortcut key.

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16 users

Like Viewer

Véget vetünk a Like vadász oldalak képeket elrejtő hülyeségének! Lásd azt a képet, amiért az oldalra érkeztél!

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103 users

LILIANA Linking Requires Restart

Links the selected text to the relevant Statistics Explained articles

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1 user

Limanowa Live Requires Restart

Limanowa Live jest aplikacja umożliwiająca szybki podgląd na to co się dzieje na rynku w Limanowej.

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1 user

Lindsay Extension

Lindsay Extension Live

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1 user

Link cuter (Сокращатель ссылок) Requires Restart

Сокращение ссылок на посещаемые страницы с помощью сервиса коротких ссылок lcut.us (Link cuter).

Rated 5 out of 5 stars (2)
11 users

Link Detector Compatible with Firefox 57+

Link Detector checks for legal citations to EU legislation and case law and establishes links to EuroCases online database

Rated 5 out of 5 stars (1)
75 users

Link from Plain Text

Easy way to use plain text as a link. Using either context-menu or hotkeys

Rated 4 out of 5 stars (2)
27 users

Link Gopher Requires Restart

Extracts all links from web page, sorts them, removes duplicates, and displays them in a new tab for inspection or copy and paste into other systems.

Rated 4 out of 5 stars (65)
9,706 users

Link Pager Requires Restart

Go to next/previous page using 'rel' attribute.

Rated 3 out of 5 stars (2)
34 users