Manifest V2 Add-on Overrides new tab
- By:
- Leslie Zacharkow
- Daily users:
- 5,543 -35
- Rating:
- 4.78 (381)
1 new ratings
- Version:
- 0.996resigned1 Last updated: 2024-04-25
- Version code:
- 5728697
- Creation date:
- 2017-09-06
- Risk:
- Low risk impact Low risk likelihood
- Size:
- 288.07KB
- URLs:
- Website
- Full description:
- See detailed description
- Source:
- Firefox Browser Add-ons
- Data ingested on:
- 2025-07-08
User reviews
Pros
- Brings joy and is highly enjoyable to use when opening new tabs
- Cute design and appealing customization options like dressing up the cats
- Offers pleasant interactive features such as purring on hover
Cons
- Snapshot feature is broken on Firefox due to CORS restrictions
- Limited variety of pets; users want more animal types
- Customization limitations, such as eye color not changing for certain cat types
- Interference with browser goodies, such as losing crown items
Recent reviews
they don't include other pets :(
by Fi*****, 2025-07-06
Literally OBSESSED with this add-on. I can't tell you how much joy it brings me every time I open a new tab. THANK YOU!
by *****, 2025-06-11
by NC*****, 2025-05-19
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.
Tabby Cat requires very minimum permissions.
Risk impact analysis details
- Medium Can alter new tab settings; fairly benign but with some capability to affect user experience.
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.
Tabby Cat 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 Tabby Cat vs Tabby Cat update for Firefox
- Compare Tabby Cat vs Cat Tab
- Compare Tabby Cat vs tabby cat
Similar add-ons
Here are some Firefox add-ons that are similar to Tabby Cat:

Tabby Cat update for Firefox
DidiDidi129

Cat Tab
chick_0
tabby cat
kimjorgenson
beautiful tabby cat
a93

Tabby
Rob

Cats
AwesomeEXT
Tiger Tabby Cat
Redbud

Cat-In-Tab
AaronTz

Tabbie : easy tab viewer
010 Pixel
Popular extensions / apps
Here are some popular extensions / apps that you might be interested in:
Enhancer for YouTube™
Maxime RF
MaxAI: Ask AI anything as you browse (GPT, Gemini, Claude, Grok, etc.)
https://maxai.co
DeepL: translate and write with AI
DeepL SE
RetailMeNot: Codes, Cash Back and Coupons
https://www.retailmenot.com/
TubeBuddy for YouTube™
https://www.tubebuddy.com/
Momentum
http://momentumdash.com/
OZON: товары, одежда, билеты
Internet Solutions LLC
StayFocusd - Block Distracting Websites & Web Analytics
https://stayfocusd.com
Take Webpage Screenshots Entirely - FireShot
https://getfireshot.com/
Meta Business Suite
Meta Platforms, Inc.
Smash Hit
Mediocre
eJOY AI Dictionary
https://ejoy-english.com