Firefox add-on with keyword - limit

Limit your time spent on distracting sites. Limit is an extension that allows you to set time limits for distracting websites.

For my autistic son. Limits tabs to maintain system responsiveness.

Removes age limits for YouTube without needing to login.

Limit the number of open tabs – in total and per window

FoxyProxy is an open-source, advanced proxy management tool that completely replaces Firefox's limited proxying capabilities. No paid accounts are necessary; bring your own proxies or buy from any vendor. The original proxy tool, since 2006.

Limit the number of tabs that can be opened

Limit the number of tabs a given window can have (i.e. set a maximum number of tabs on a per-window basis) and automatically open additional tabs in a different window.

Limits the number of active tabs by unloading older tabs

TwojLimit.pl native extension

Free & Unlimited Proxy - without any restrictions and limits

Limits the number of tabs that can be open. This extension allows you to define a global limit number of tabs, beyond which you will not be able to open a new tab or a new window, in order to keep your browsing session sanity ;)

Search spam blocker. Tells you about the company behind each search result. Limits search ads to one ad per page. New! - now available on Android

Unblock any blocked website and stay secure with Touch VPN. One-click connect to unrestricted browsing through our fast VPN connection. Unlimited bandwidth and completely FREE!

Redirect to 'Hello Work', if you exceed the time limit for watching Twitter Timeline. (default: 300 seconds) (Redirect site and time can be changed.) Show countdown in seconds on Timeline and List page. Use your time effectively.

Check how much time you spend on each website every day. Optimise your productivity, your time and your life as well. Don't lose precious time!

VPN Unlimited - reliable, easy-to-use, and lightning-fast VPN extension for Firefox browser

Unlocks medium.com for unlimited reads, no membership required

Limits visits to given websites to the specified number, per 24 hours. Once the limit has been reached, the site can no longer be accessed, and a page with the amount of time until the next reset will be shown. Enjoy your newfound productivity!

Removes the 3 saves per day limit on Pixlr apps.

Mouse gestures for Firefox. A web extension alternative to FireGestures created by a long time FireGestures user.

PaladinVPN is a 100% free unlimited VPN service! It has no time, bandwidth, speed, and location switching limit at all. We’ll make your real IP address disappear so that your online activity can't be tracked.

A warm and dark theme inspired by old music gear. Easy on the eyes, with text that is legible but not distracting, and highlights that are noticeable but match. Designed for the compact density option ONLY (hidden by default) with no menu bar.

A browser extension to remove Chegg's annoying 2 device limit. It uses only a few lines of JavaScript to remove the popups and general restrictions when having more than 2 devices on an account.

Control download speeds to prevent bandwidth congestion. Set download limits and throttle download speeds to prioritize network traffic and ensure smooth browsing experiences.

Allows you to restore the tab you just closed with a single click—plus it can offer a list of recently closed tabs within a convenient context menu.