AdFender is a straightforward ad blocker which works with just about any browser, and requires the minimum of setup - just install the program, restart any open browsers and you should find ads in web pages are blocked immediately.
Does it work? Yes, mostly. We noticed a significant difference immediately, with the enormous majority of ads (not quite all, but near enough that you won't care) disappearing, all without you having to do anything at all. This speeds up your browsing by reducing the amount of data you're downloading, too, and hovering a mouse cursor over the AdFender system tray icon will show you a tooltip with the total amount you've saved too far.
There's also the potential for problems. AdFender works as a content filter, stripping out anything which looks like an ad, and we've seen this effectively break sites before, very occasionally.
Still, even if you do have issues, it's possible to create custom filters to block ads on some sites, and not others. That's suddenly not looking quite as straightforward, of course, but the option is there if you need it.
Version 2.25 (Changelog):
Added support for blocking pop-ups using $popup filter option
Added option to activate license from tray icon
Added Spam404 filter list
Optimized filter engine for faster and more accurate processing of requests
All outgoing requests routed through the filter engine for scanning
Fixed incorrect application of rules with $genericblock option
Fixed incorrect application of exception rules using $third-party option
Fixed issue with element hide rules not applied on pages served using sdch compression
Fixed issue with rules having domains enabled and disabled as part of the same rule
Fixed issue in processing HTTPS connections to non-standard port
Fixed issue in reloading filter lists after making changes
Fixed issue with duplicate root CA notifications when using Firefox
Fixed script error notifications on Windows 10 when using legacy applications
Fixed issue with UI scaling on systems using higher DPI settings
Fixed incorrect log entries when blocking redirected requests
Fixed multiple issues when using upstream proxy
Updated OpenSSL to version 1.0.2h
Updated HTTPS exclusion list
Updated TLD list to include only ICANN domains
Updated tray icon tool tip message to show version and last update information