Firefox add-on with keyword - lookup

View results for lookup in Firefox Browser Add-ons
Keyword difficulty: 3

Add-ons (also known as extensions) are small programs that run inside web browsers like Mozilla Firefox. They add extra features to the browser without having to download anything new. You can use extensions to make browsing faster, easier, and safer. Some extensions even let you do things like translate text on websites, search the web, and play games.

There are over 28,000 Firefox-addons and 480,000 themes, making it hard to find the best ones. so we have created a way to sort through all of them. Use the dropdown above to set different filters. Add-ons are sorted by number of active users.

To set even more advanced filters, and sort the Firefox add-ons differently, please visit our Advanced search tool. Note that Advanced search tool is only available to premium members.

250 results. Page 1 of 10.
IP Location Lookup
#1, IP Location Lookup
IP Location Lookup
IPWHOIS.io
Free IP Geolocation API and IP Location Lookup
5.00 (2)
386
Image Lookup
#2, Image Lookup
Image Lookup
Lt. Starbuck
Reverse image search with Google, TinEye, and Karma Decay
0.00 (0)
120
DNS lookup - HTTP status
#3, DNS lookup - HTTP status
DNS lookup - HTTP status
MarcAndreGSylvainM
Analyze domain dns zone and http status.
4.09 (11)
370
macOS Dictionary Lookup
#4, macOS Dictionary Lookup
macOS Dictionary Lookup
Emmanuel
Select words and look them up in macOS’s Dictionary application.
3.52 (33)
378
TheFreeDictionary.com Lookup
#5, TheFreeDictionary.com Lookup
TheFreeDictionary.com Lookup
polizz
This extension adds a context menu to enable lookup of selected word on www.thefreedictionary.com. You simply double any word on a page and right click to access a simple link that opens up a new tab that pulls up the definition of that word.
4.56 (9)
272
Jisho Lookup
#6, Jisho Lookup
Jisho Lookup
snwp212
An option to look up a selected word on a Japanese-English dictionary called Jisho from right-clicking it.
0.00 (0)
45
Wikipedia lookup
#7, Wikipedia lookup
Wikipedia lookup
Upollo
Quickly lookup the highlighted text on Wikipedia
5.00 (1)
30
IP Lookup
#8, IP Lookup
IP Lookup
Francesco De Stefano
It uses a database of IP addresses, provided from geoip.nekudo.com, that are associated to cities and to other informations
4.00 (4)
57
Reverse Phone Lookup
#9, Reverse Phone Lookup
Reverse Phone Lookup
AN3223
Get details about a phone number by simply highlighting, right clicking, and choosing a site to look the number up on.
5.00 (1)
37
NsLookup — Find DNS Records
#10, NsLookup — Find DNS Records
NsLookup — Find DNS Records
Ruurtjan Pul
A simple and powerful tool for querying DNS records.
5.00 (1)
351
Flagfox
#11, Flagfox
Flagfox
Dave G
Displays a country flag depicting the location of the current website's server and provides a multitude of tools such as site safety checks, whois, translation, similar sites, validation, URL shortening, and more...
4.64 (959)
118,346
Language Lookup!
#12, Language Lookup!
Language Lookup!
Firefox user 13314206
Highlight a word or phrase, right click it, then choose its language to look up its definition in that language! By default it's catered to my own personal preferences, so let me know if you like it and I'll add extra features to help you!
4.00 (1)
22
SiteStacks for Firefox - Instant Tech Lookup
#13, SiteStacks for Firefox - Instant Tech Lookup
SiteStacks for Firefox - Instant Tech Lookup
Siftery
SiteStacks lets you instantly look up the technology stack behind any website
5.00 (7)
79
In Page Lookup
#14, In Page Lookup
In Page Lookup
The Other Ream
Highlight a word & press some keys and a Wiki article will present itself before your eyes for your reading pleasure. Press some other keys and gone will be the article so you can continue on your browsing journey knowing just a bit more on a topic.
5.00 (1)
13
Quick Jisho Lookup
#15, Quick Jisho Lookup
Quick Jisho Lookup
Resonious
Adds context menu option and toolbar button for quick, in-place jisho.org lookup.
5.00 (3)
18
PonsLookUp
#16, PonsLookUp
PonsLookUp
C.K.
Adds a context menu item to search for a selected word in the PONS online dictionary. Clicking the menu item opens a new tab with the search results on pons.com. Languages can be changed on the Add-on's settings page.
5.00 (4)
201
Adict - Instant Dictionary Lookup
#17, Adict - Instant Dictionary Lookup
Adict - Instant Dictionary Lookup
relte
This extension allows you to easily look up a phrase in English, Polish and others holding ALT and double clicking. You can choose one of the four available dictionaries: dictionary.com (EN), merriam-webster.com (EN), diki.pl (EN/PL) and bab.la.
4.20 (10)
38
Spotify Guitar Tab Lookup
#18, Spotify Guitar Tab Lookup
Spotify Guitar Tab Lookup
Daniel
Find tabs to a song with one click
0.00 (0)
26
Domain Name Registration Data Lookup (WHOIS)
#19, Domain Name Registration Data Lookup (WHOIS)
Domain Name Registration Data Lookup (WHOIS)
Brian
This tool gives you the ability to look up the registration data for domain names
0.00 (0)
77
Address Auto-Complete
#20, Address Auto-Complete
Address Auto-Complete
Fetchify (previously Crafty Clicks)
Fetchify Address Lookup extension for various systems.
1.00 (1)
9
Hamradio lookups
#21, Hamradio lookups
Hamradio lookups
QRZ Hamradio Lookups
QRZ Ham Radio lookups. Search callsigns on hamradio websites.
0.00 (0)
36
Railduino Zeroconf Lookup
#22, Railduino Zeroconf Lookup
Railduino Zeroconf Lookup
Volker Wiegand
Find HTTP Servers in the .local domain using Zeroconf. A popup window with the available servers is displayed. When clicking a link, the current tab is replaced with the server. Requires a companion native program which is also in the repository.
5.00 (1)
17
Easy DNS lookup
#23, Easy DNS lookup
Easy DNS lookup
wesinator
Utility to do DNS lookups directly to DNS servers and display the response in the addon.
0.00 (0)
5
LookUp
#24, LookUp
LookUp
Jeremie Patonnier
LookUp is an Add-on for your browser that allows you to create rules to look into pages for any type of text content or HTML node. It can be used to search for specific text content or to check for a given HTML structure into pages while browsing.
0.00 (0)
1
Reverse Phone Lookup
#25, Reverse Phone Lookup
Reverse Phone Lookup
CallerName.com
Look up the most recent owner and the location of that number.
3.33 (3)
9
250 results. Page 1 of 10.