SignalHire extension helps to find emails and phone numbers on LinkedIn and other social and business networks
- By:
- SignalHire
- Daily users:
- 2,509 -11
- Rating:
- 4.12 (34)
0.03
- Version:
- 4.0.25 Last updated: 2021-08-27
- Version code:
- 5287050
- Creation date:
- 2018-10-09
- Risk:
- Very high risk impact Low risk likelihood
- Permissions:
- storage
- cookies
- https://github.com/*
- https://*.facebook.com/*
- https://twitter.com/*
- tabs
- notifications
- https://www.linkedin.com/*
- *://*.linkedin.com/*
- https://www.signalhire.com/
- storage
- Size:
- 978.29KB
- Email:
- su*****@signalhire.com
- URLs:
- Website ,Privacy policy
- Full description:
- See detailed description
- Source:
- Firefox Browser Add-ons
- Data ingested on:
- 2025-07-15
Ranking
Other platforms
User reviews
Pros
- Saves a lot of time in finding contact information through a browser extension
- Database is generally up-to-date and provides verified emails and phone numbers
- User-friendly interface and easy navigation
- Integrates well with other platforms like LinkedIn, aiding sales and recruiting efforts
- Reasonable pricing that delivers good value for sales and recruiting professionals
Cons
- Occasionally contains outdated contact information
- Minimum subscription price ($79/mo) is high despite emphasis on free credits
- Stopped working entirely as reported by at least one user
- Lack of detailed release notes or update information for users
Recent reviews
I've been using SignalHire for six months -- it really saves a ton of time. You can find the necessary contacts in just a couple of clicks through the browser extension. The database is up-to-date, although occasionally you'll encounter outdated information. The price is reasonable and pays off quickly. Customer support is responsive. Definitely recommend for sales and recruiting.
by Br*****, 2025-07-14
SignalHire changed my outreach game completely. After struggling to find decision-makers' contact info, I tried it and immediately found verified emails for 3 VPs I'd been trying to reach for weeks. Now I spend less time researching and more time actually selling. Worth every penny for my B2B sales process.
by Ol*****, 2025-06-30
by Fi*****, 2025-06-12
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.
SignalHire - find email or phone number requires a lot of sensitive permissions. 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 ******* ******* **** *** ****** ***** *** ***** ** ******* **** ********* ********* ** * *********** *****
- Medium ******* ******* ************* ***** *** ** ******* *** **** ******* ****** ******** *******
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.
SignalHire - find email or phone number has earned a fairly good reputation and likely can be trusted.
Risk likelihood analysis details
- High This extension has low user count. Unpopular extensions may not be stable or safe.
- Low **** ********* *** ******* **** **** * ****** **** ***** ******** *** **** ****** ** ** ****** *** *****
- Low **** ********* *** ***** **** **** * ****** **** ***** ********** *** **** ****** ** ** ****** *** *****
- Good **** ********* *** **** **** *******
Upgrade to see full risk analysis details
Compare add-ons
- Compare SignalHire - find email or phone number vs SignalHire - find email or phone
- Compare SignalHire - find email or phone number vs SalesQL Browser Extension
- Compare SignalHire - find email or phone number vs Leadsolo LinkedIn Plugin
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