Check the speed, quality and performance of your Internet connection with the AT&T Internet speed test.

Advanced options and tools to easily customize appearance, behavior, performance and privacy.

This extension shows further information about each Facebook page's performance.

Test your page performance with Google PageSpeed Insights, GTmetrix, Yellow Lab Tool and WebPageTest at once, with one single click

This easy-to-use extension will help you analyze your website for performance issues.

With VideoAmigo, finally grow your YouTube channel by knowing what it takes to WIN in YOUR category.

Real time news with sentiment analysis for daily stock trader! Add on useful features such as: profit display, sector performance...

Graphs common performance timing data from your current website using the performance timing API.

Helper for namehelp, a tool for improved web performance by AquaLab at Northwestern University.

Quickly inspect page media elements to gain detailed, actionable information for performance tuning.

Franz SEO Live Test is a extendable tool to run webperformance, technical SEO tests on webpages while browsing!

Lattice’s feedback tool empowers employees to share feedback throughout the year - no more waiting for the annual performance…

This extensions displays some technical and structural performance data of websites.

Advanced SEO tool which will boost your overall website performance and help increase your website ranking in search engines.

Block everything. Ad blocking performance is our top priority.

InflueNex is a free analysis tools which helps you view YouTube channel stats, channel performance, latest video views, and more.

Record user actions into manual steps with screenshots and page performance timings

Check network performance with just one tap with number of servers worldwide and show accurate results within 30s

Helper revealing players performance while map picking.

CanvasPlus: Power up your learning with color themes, navigation shortcuts, and improved performance.

Torque is a vehicle/car performance tool that uses an OBD II Bluetooth adapter to connect to your OBD2 engine management / ECU.

Demystify Ad Tech and Optimize Page Performance

Use this simple tool to get an instant snapshot of the performance of the website you are visiting.

Advanced SystemCare - Clean your PC, boost performance, and secure system and browsing.

Helps ASP.NET developers improve performance via increased awareness of View State footprint.

Boost your Browsing! This extension monitors your network connection and scales up your webpage for maximum performance.

Performance Scorecard analyzes web pages for compliance with known best practices for page performance and delivers specific…

DueFocus is a feature-packed time-tracker for IT professionals that is proven to increase engineers' performance.

Queue and control your youtube videos and keep the performance. Queues your Youtube videos with a click or the search bar in the app

Take the place of "Continue where you left off" with a higher performance way.