This post is more for my future reference than anything, but hopefully it is useful to others as well. :)

Browser Information:

Firefox with OpenSUSE's patches which allows it to integrate better into KDE.

If you use Archlinux, it can be obtained through the AUR. The package name is firefox-kde-opensuse

Theme:

• Oxygen KDE

  Imitates KDE's Oxygen style.

Extensions:

• Adblock Plus

  It blocks advertisements just like the name implies.

• Adblock Plus Pop-up Addon

  Makes it easy to block pop-ups with Adblock Plus.

• AutoPager

  Autoload the next page of a website in the background.

• BetterPrivacy

  Removes Flash "Super-Cookies".

• Cookie Monster

  Comprehensive Cookie Management

• Cryptocat

  Lets you instantly set up encrypted conversations.

• DuckDuckComplete!

  Shows answers, search results, or search suggestions from DuckDuckGo! in the URL bar.

• DuckDuckGo for Firefox

  DuckDuckGo enhancements for Firefox. (Adds DDG's Zero-Click information to Google, Bing, etc)

• Element Hiding Helper for Adblock Plus

  Helps you create element hiding rules for Adblock Plus to fight the text ads.

• FireGloves

  Attempts to impede fingerprinting-based tracking.

• Flashblock

  Replaces Flash objects with a button you can click to view them.

• Ghostery

  Identifies and allows you to block the 3rd parties (web bugs) that are hidden on the current page you're visiting. Web bugs include ad networks, behavioral data collectors and web analytics providers.

• HTTPS Finder

  Automatically detect and alert when SSL is available on a web page. Automated rule creation for HTTPS Everywhere

• HTTPS-Everywhere

  Automatically use HTTPS security on many sites.

• KDE Wallet password integration

  Enable passwords and form logins to be stored in KDE Wallet.

• NoScript
  https://addons.mozilla.org/en-US/firefox/addon/adblock-edge/?src=search

  Blocks JavaScript, Java, and other plugins on all sites except for domains of your choice.

• Oxygen KDE Options (Comes with the theme)

  Allows you to tweak the appearance of the "Oxygen KDE" firefox theme

• PDF Viewer

  PDF.js adds PDF reading capabilities to the browser using HTML5.

• Priv3

  Helps protects you from being tracked by social networks.

• Reddit Enhancement Suite

  Enhances your experience on Reddit.

• Redirect Cleaner

  Redirect Cleaner cleans Redirects from Links

• RefControl

  Control what gets sent as the HTTP Referer on a per-site basis.

• RequestPolicy

  Control which cross-site requests are allowed.

• Scriptish

  A user script manager for Firefox (A fork of Greasemonkey).

• Suspend background tabs

  Suspends actions in background tabs until they become active again..

• United States English Spell-checker

  Spell-checker

• WebPG for Firefox

  Provides GnuPG/GPG/PGP related functions to Firefox.

Userscripts:

• Ads Skipper

  Skips advertisements on download sites.

• Anti-Anti-AdBlock

  Disables anti-adblocker script.

• Jamendo Direct Ogg Download

  Rewrites Jamendo's album download links to point to the direct-download Ogg Vorbis versions.

• Straight Google

  Remove Google's URL track redirection from Google Products.

• Twitter Link Cleaner

  Converts t.co wrapped links to actual urls and does minimal formatting on other wrappers (youtu.be, etc).

• Twitter Promoted Killer

  Hide promoted tweets, promoted accounts and promoted trends on Twitter.

• Youtube Forced HTML5 Player

  Plays Youtube videos in container (Works with embedded videos as well).

• userscripts.org Bullshit Filter

  Hides scripts for popular browser games and social networks as well as scripts that use "foreign" characters in description.

Firefox Configuration Tweaks:

• about:home modified to use DuckDuckGo (Instructions)
• browser.cache.disk.parent_directory = /dev/shm/firefox
• browser.cache.memory.enable = false
• browser.cache.offline.enable = false
• browser.search.defaultenginename = DuckDuckGo
• keyword.URL =
• mousewheel.withnokey.numlines = 7
• mousewheel.withnokey.sysnumlines = false