FireFoxExtentions
https://www.mozilla.org/en-US/plugincheck/
BuiltWith is a web site profiler tool. Upon looking up a page, BuiltWith returns a list all the technologies in use on that page that it can find. https://addons.mozilla.org/en-US/firefox/addon/builtwith/
Clear browser cache with a single click or via the F9 key. F9 Fever! ;) https://addons.mozilla.org/en-US/firefox/addon/clearcache/?src=search
Shows country flag based on the server location for any website https://addons.mozilla.org/bg/firefox/addon/flag-plus/?src=search
You can capture a screen shot by selecting an area or capture the whole/visible webpage. Then edit and save it as an image file. https://addons.mozilla.org/bg/firefox/addon/easyscreenshot/?src=search
You can capture a screen shot by selecting an area or capture the whole/visible webpage. Then edit and save it as an image file. https://addons.mozilla.org/bg/firefox/addon/page-screenshot-tool/
Shows location of IP/host down to city level https://addons.mozilla.org/bg/firefox/addon/flagfox/?src=search
Enhance your written communication everywhere you type! https://addons.mozilla.org/bg/firefox/addon/grammarly-1/?src=search
Save a complete page into a single HTML file https://addons.mozilla.org/bg/firefox/addon/single-file/?src=search
Checks the current tab's URL against Qualys SSL Labs' SSL Server Test. https://addons.mozilla.org/bg/firefox/addon/qualys-ssl-server-test/?src=search
Detects the theme and plugins used in WordPress and display information about them. https://addons.mozilla.org/bg/firefox/addon/wp-theme-and-plugins-detector/?src=search
The entire page will be fading to dark, so you can watch the video as if you were in the cinema. [https://addons.mozilla.org/bg/firefox/addon/turn-off-the-lights/?src=featured] (https://addons.mozilla.org/bg/firefox/addon/turn-off-the-lights/?src=featured0)
All of your MX record, DNS, blacklist and SMTP diagnostics in one integrated tool https://addons.mozilla.org/bg/firefox/addon/mx-tool-box/?src=search
Right-click on a section of text and click on Translate icon next to it to translate or listen it to your language.https://addons.mozilla.org/en-US/firefox/addon/to-google-translate/?src=search
Displays country flag of website's server location, Whois and Geo info on a browser addressbar icon https://addons.mozilla.org/en-US/firefox/addon/country-flags-ip-whois/?src=search
Click on any image on the web to search for it on TinEye. https://addons.mozilla.org/en-US/firefox/addon/tineye-reverse-image-search/?src=search
A customizable reverse image search tool that conveniently presents a variety of top image search engines. https://addons.mozilla.org/en-US/firefox/addon/image-search-options/
Stop coin miners on the web! https://addons.mozilla.org/en-US/firefox/addon/no-coin/?src=search
Fight back against advertising surveillance https://addons.mozilla.org/en-US/firefox/addon/adnauseam/?src=search
Adds a bar to show the status of your downloads https://addons.mozilla.org/en-US/firefox/addon/wx-download-status-bar/?src=search
Re-implements the google image, "View Image" and "Search by Image" buttons. https://addons.mozilla.org/en-US/firefox/addon/view-image/?src=search
Copy Plain Text without any formatting https://addons.mozilla.org/en-US/firefox/addon/copy-plaintext/?src=search
Dark mode for every website. Take care of your eyes, use dark theme for night and daily browsing. https://addons.mozilla.org/en-US/firefox/addon/darkreader/?src=search
Image Search Options provides a set of highly customizable reverse image search context menu options.
Good old Wikipedia gets a great new look https://addons.mozilla.org/en-US/firefox/addon/wikiwand-wikipedia-modernized/?src=search
Select a number of links with a rectangle and open them in new tabs. You can also lasso checkboxes to quickly check or uncheck them. Works with radio buttons as well. https://addons.mozilla.org/en-US/firefox/addon/snaplinksplus/
Lets you open, copy or bookmark multiple links at the same time. https://addons.mozilla.org/en-US/firefox/addon/linkclump-for-firefox/
Allows you to restore the last closed tab with just one button click and gives you access to the list of recently closed tabs in the button context menu. https://addons.mozilla.org/en-US/firefox/addon/undoclosetabbutton/
Save webpage as a PDF file. Simply click on the addon icon and see the magic happens. The best free PDF saving tool on the market. https://addons.mozilla.org/en-US/firefox/addon/save-pdf-tool/?src=search
Do you have a ton of open tabs? Organize them in a tidy sidebar. https://addons.mozilla.org/en-US/firefox/addon/tree-style-tab/
Add price history charts and price watch features to Firefox when viewing product pages on Amazon. Use it to make informed purchasing decisions and to receive price drop alerts via email, Twitter, or RSS feed. https://addons.mozilla.org/en-US/firefox/addon/the-camelizer-price-history-ch/
With a simple mouse-over you can enlarge images and display images/videos from links. https://addons.mozilla.org/en-US/firefox/addon/imagus/
Navigate, operate, and browse faster with mouse gestures! A customizable mouse gesture add-on with a variety of different commands. https://addons.mozilla.org/en-US/firefox/addon/gesturefy/
The Mass Downloader for your browser https://addons.mozilla.org/en-US/firefox/addon/downthemall/
Read out loud the current web-page article with one click. Supports 40+ languages. https://addons.mozilla.org/en-US/firefox/addon/read-aloud/
Save an entire web page—including images and styling—as a single HTML file. https://addons.mozilla.org/en-US/firefox/addon/single-file/
Scroll page without touching scroll-bar! Press Middle (Right / Left) mouse button anywhere on the page to scroll just like with scrollbar. https://addons.mozilla.org/en-US/firefox/addon/scroll_anywhere/
New Tab Override allows you to set the page that shows whenever you open a new tab. https://addons.mozilla.org/en-US/firefox/addon/new-tab-override/
Copy Plain Text without any formatting https://addons.mozilla.org/en-US/firefox/addon/copy-plaintext/
Increase browser speed and reduce memory load and when you have numerous open tabs. https://addons.mozilla.org/en-US/firefox/addon/auto-tab-discard/
https://addons.mozilla.org/en-US/firefox/addon/bionic-reader/
Force Enable Right Click & Copy https://addons.mozilla.org/en-US/firefox/addon/absolute-enable-right-click/
This add-on stops websites from blocking copy and paste for password fields and other input fields. https://addons.mozilla.org/en-US/firefox/addon/don-t-fuck-with-paste/
Get free text of research papers as you browse, using Unpaywall's index of ten million legal, open-access articles. https://addons.mozilla.org/en-US/firefox/addon/unpaywall/
Download SVGs from websites as SVGs, PNGs or JPEGs https://addons.mozilla.org/en-US/firefox/addon/svg-export/
Quickly resize the window to one of your favorite sizes [https://addons.mozilla.org/en-US/firefox/addon/windowsizer/]I(https://addons.mozilla.org/en-US/firefox/addon/windowsizer/)
Web Scraper is a website data extraction tool. You can create a sitemaps that map how the site should be navigated and from which elements data should be extracted. Then you can run the scraper in your browser and download data in CSV. https://addons.mozilla.org/en-US/firefox/addon/web-scraper/
FoxClocks shows times around the world - or just your local time - at the bottom of your browser. It deals with daylight saving time so you don't have to. https://addons.mozilla.org/en-US/firefox/addon/foxclocks/
Privacy, simplified. Our add-on provides the privacy essentials you need to seamlessly take control of your personal information, no matter where the internet takes you: tracker blocking, smarter encryption, DuckDuckGo private search, and more. https://addons.mozilla.org/en-US/firefox/addon/duckduckgo-for-firefox/
Firefox Multi-Account Containers lets you keep parts of your online life separated into color-coded tabs that preserve your privacy. Cookies are separated by container, allowing you to use the web with multiple identities or accounts simultaneously. https://addons.mozilla.org/en-US/firefox/addon/multi-account-containers/
Prevent Facebook from tracking you around the web. The Facebook Container extension for Firefox helps you take control and isolate your web activity from Facebook. https://addons.mozilla.org/en-US/firefox/addon/facebook-container/?src=search
Encrypt the web! HTTPS Everywhere is a Firefox extension to protect your communications by enabling HTTPS encryption automatically on sites that are known to support it, even when you type URLs or follow links that omit the https: prefix. https://addons.mozilla.org/en-US/firefox/addon/https-everywhere/?src=search
Displays the Exif and IPTC data in local and remote JPEG images. https://addons.mozilla.org/bg/firefox/addon/exif-viewer/
Block ads, stop trackers and speed up websites. https://addons.mozilla.org/en-US/firefox/addon/ghostery/?src=search
Automatically learns to block invisible trackers. https://addons.mozilla.org/en-US/firefox/addon/privacy-badger17/
Finally, an efficient wide-spectrum content blocker. Easy on CPU and memory. https://addons.mozilla.org/en-US/firefox/addon/ublock-origin/
Point & click to forbid/allow any class of requests made by your browser. Use it to block scripts, iframes, ads, facebook, etc. https://addons.mozilla.org/en-US/firefox/addon/umatrix/
Unmatched adblock extension against advertising and pop-ups. Blocks ads on Facebook, Youtube and all other websites. https://addons.mozilla.org/en-US/firefox/addon/adguard-adblocker/
A secure and free password manager for all of your devices. https://addons.mozilla.org/en-US/firefox/addon/bitwarden-password-manager/
Official browser plugin for the KeePassXC password manager https://addons.mozilla.org/en-US/firefox/addon/keepassxc-browser/
Removes tracking elements from URLs https://addons.mozilla.org/en-US/firefox/addon/clearurls/
Redirects YouTube, Twitter, TikTok... requests to alternative privacy friendly frontends. https://addons.mozilla.org/en-US/firefox/addon/libredirect/
Clear browser cache with a single click or via the F9 key. https://addons.mozilla.org/en-US/firefox/addon/clearcache/
Delete browsing data directly from the browser toolbar. Clear cookies, history and cache with a single click. [https://addons.mozilla.org/en-US/firefox/addon/clear-browsing-data/]9https://addons.mozilla.org/en-US/firefox/addon/clear-browsing-data/
Defending against Font fingerprinting by reporting a fake value. https://addons.mozilla.org/en-US/firefox/addon/font-fingerprint-defender/
Get rid of cookie warnings from almost all websites! https://addons.mozilla.org/en-US/firefox/addon/i-dont-care-about-cookies/
Hides annoying YouTube comments. https://addons.mozilla.org/en-US/firefox/addon/no-youtube-comments/?src=search
Play the Youtube shorts video as if it were a normal video. and hide "shorts"tab and videos (optional). https://addons.mozilla.org/en-US/firefox/addon/youtube-shorts-block/
Hide YouTube related videos, comments, video suggestions wall, homepage recommendations, trending tab, and other distractions. https://addons.mozilla.org/en-US/firefox/addon/youtube-recommended-videos/
Enhance your YouTube experience with this powerful browser extension. Features include customizable volume control, automatic quality settings, playback speed adjustments, volume boost, and more. Build from scratch with easy steps. https://addons.mozilla.org/en-US/firefox/addon/youtube-enhancer-vc/
The best way to group your subscriptions Using this simple extension you can create collections that seamlessly fit into YouTube's layout. https://addons.mozilla.org/en-US/firefox/addon/youtube-subscription-groups/
Easily skip YouTube video sponsors. When you visit a YouTube video, the extension will check the database for reported sponsors and automatically skip known sponsors. You can also report sponsors in videos. https://addons.mozilla.org/en-US/firefox/addon/sponsorblock/
Crowdsourcing titles and thumbnails to be descriptive and not sensational https://addons.mozilla.org/en-US/firefox/addon/dearrow/
Tampermonkey is the world's most popular userscript manager. https://addons.mozilla.org/en-US/firefox/addon/tampermonkey/
Returns ability to see dislike statistics on youtube https://addons.mozilla.org/en-US/firefox/addon/return-youtube-dislikes/
YouTube™ Content Blocker. Block channels and videos from YouTube. Fast and easy. https://addons.mozilla.org/en-US/firefox/addon/blocktube/
Youtube Extension. Powerful but lightweight. Enrich your Youtube & content selection. Make YouTube tidy&smart! Layout Filters Shortcuts Adblocker Playlist. https://addons.mozilla.org/en-US/firefox/addon/youtube-addon/
YouTube High Definition is a powerful tool that automatically plays all YouTube videos in HD, changes video player size, offers auto-stop and mute, and much more. https://addons.mozilla.org/en-US/firefox/addon/youtube-high-definition/
Download YouTube Videos in HD + SOUND. YouTube Video Download - YouTube HD Download is an amazing YouTube Video Downloader tool for all the download video YouTube fans. https://addons.mozilla.org/en-US/firefox/addon/youtube-download-hd-download/
Take screenshots from YouTube Videos & YouTube Shorts. The addon adds screenshot button & also enables Shift+A shortcut. https://addons.mozilla.org/en-US/firefox/addon/youtube-screenshot-button/
A simple extension for superfast and easy YouTube downloads in FLV, 3GP, MP3, MP4, 720p, and 1080p formats. https://addons.mozilla.org/en-US/firefox/addon/easy-youtube-video-download/
Returns ability to see dislike statistics on youtube https://addons.mozilla.org/en-US/firefox/addon/return-youtube-dislikes/
Show summary of ChatGPT in Youtube.com . Glarity - YouTube Video Summary with ChatGPT (AD-Free) This is an open source extension that shows a summary from ChatGPT next to Youtube. https://addons.mozilla.org/en-US/firefox/addon/glarity-youtube-summary/
Youtube subtitle downloader button below YouTube videos. This button takes you to the list of subtitles of the corresponding video when clicked! https://addons.mozilla.org/en-US/firefox/addon/download-youtube-subtitles/