Wordpress Plugins 
Mozilla Firefox Addons 
Google chrome Extensions 
Google Analytics by MonsterInsights Connect Google Analytics with WordPress by adding your Google Analytics tracking code. Get the stats that matter.
Total Downloads: 12.1M Download Plugin
WP Smush - Image Optimization Reduce image file sizes, improve performance and boost your SEO using the free WPMU DEV WordPress Smush API.
Total Downloads: 3.9M Download Plugin
Disable Comments Allows administrators to globally disable comments on their site. Comments can be disabled according to post type. Multisite friendly.
Total Downloads: 3.2M Download Plugin
WP Maintenance Mode Adds a splash page to your site that lets visitors know your site is down for maintenance. It's perfect for a coming soon page.
Total Downloads: 2.5M Download Plugin
Total Downloads: 1.9M Download Plugin
Events Manager Fully featured event registration management including recurring events, locations management, calendar, Google map integration, booking management
Total Downloads: 1.6M Download Plugin
Google Sitemap by BestWebSoft Generate and add XML sitemap to WordPress website. Help search engines index your blog.
Total Downloads: 1.3M Download Plugin
Blubrry PowerPress Podcasting plugin No. 1 Podcasting plugin for WordPress, with simple & advanced modes, players, subscribe tools, and more! Supports iTunes, Google Play, Stitcher...
Total Downloads: 1M Download Plugin
WordPress Mobile Pack The NEW WordPress Mobile Pack allows you to 'package' your existing content into a cross-platform mobile web application.
Total Downloads: 0.9M Download Plugin
Total Downloads: 889K Download Plugin
Print Friendly and PDF Button The #1 Print and PDF button for your WordPress site. Printer Friendly pages without coding, css, or print.css. Fast, easy, and professional.
Total Downloads: 877.6K Download Plugin
YITH WooCommerce Ajax Product Filter YITH WooCommerce Ajax Product Filter offers you the perfect way to filter all products of your WooCommerce shop.
Total Downloads: 847.5K Download Plugin
Event Organiser Create and maintain events, including complex reoccurring patterns, venue management (with Google maps), calendars and customisable event lists
Total Downloads: 653.5K Download Plugin
Social Media Share Buttons | MashShare Social Media Share Buttons for Twitter, Facebook and other social networks. Highly customizable Social Media ecosystem
Total Downloads: 599.1K Download Plugin
Use Google Libraries Allows your site to use common javascript libraries from Google's AJAX Libraries CDN, rather than from WordPress's own copies.
Total Downloads: 550.9K Download Plugin
Shadowbox JS Shadowbox is an online media vieiwing application similar to Lightbox and Thickbox but with more functionality. Supports all types of media.
Total Downloads: 518.7K Download Plugin
Transposh WordPress Translation Transposh adds best of breed translation support to wordpress, 92 languages are automatically translated and can be manually corrected with ease.
Total Downloads: 427.5K Download Plugin
Post-Plugin Library The shared code library for Similar posts, Recent Posts, Random Posts, Popular Posts and Recent Comments.
Total Downloads: 420.4K Download Plugin
(PressGraph) Facebook Like Add Facebook Like Button to your website with ton of customization options, and make your website OpenGraph ready without you writing a 1 line of code
Total Downloads: 406.7K Download Plugin