OpenTab

A simple but functional new tab replacement with quick access to recently closed tabs

OpenTab is a simple New Tab replacement extension with the ability to specify a background URL and includes a recently closed tabs list accessible by navigating the mouse to the left side of the browser. This tab list includes a simple search box that will come into focus when the list is shown, to quickly find closed tabs again.

Manifest V2 Add-on Overrides new tab
By:
mattkrins
Daily users:
12
Version:
0.2 Last updated: 2020-01-02
Version code:
4933675
Creation date:
2020-01-02
Risk:
Moderate risk impact Moderate risk likelihood
Permissions:
  • storage
  • sessions
  • tabs
Size:
61.32KB
URLs:
Website
Full description:
See detailed description
Source:
Firefox Browser Add-ons
Data ingested on:
2025-07-14

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.

OpenTab requires a few 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.
  • 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.

OpenTab is probably trust-worthy. Prefer other publishers if available. Exercise caution when installing this add-on.

Risk likelihood analysis details
  • High This extension has low user count. Unpopular extensions may not be stable or safe.
  • Low **** ********* *** ******* **** **** * ****** **** ***** ******** *** **** ****** ** ** ****** *** *****
  • Low **** ********* *** ***** **** **** * ****** **** ***** ********** *** **** ****** ** ** ****** *** *****
Upgrade to see full risk analysis details

Compare add-ons

Similar add-ons

Here are some Firefox add-ons that are similar to OpenTab:

Popular extensions / apps

Here are some popular extensions / apps that you might be interested in: