Is Adblock Plus better than using the Firefox pop up blocker? Will it conflict with Avast?
Just a minor point, but I wanted to check back with you and clarify that Firefox doesn't have a built-in ad blocker. For added privacy you can start Firefox in private browsing mode [open the main menu (hamburger icon) and click New Private Window] with Tracking Protection enabled, but using tracking protection to block third-party trackers like tracking cookies is different from using ad blockers like Adblock Plus and Adguard AdBlocker that are designed to prevent pop-up ads, banner ads embedded in web pages, malicious adware, etc.from being displayed.
The pop-up blocker in Firefox described in the support article Settings for web content, pop-ups, fonts, and languages is only designed to block pop-up windows. The support article Pop-up blocker settings, exceptions and troubleshooting notes that "Sometimes ads are designed to look like windows, but really aren't. Firefox's pop-up blocker can't stop these ads".
... I downloaded Safari which allowed me to get SP2, and IE 9...
If you're referring to Safari for Windows, support for that browsers was discontinued several years ago and Safari for Windows v5.1.7 (released 09-May-2012) was the last version supported by Apple. Since it's no longer needed that's another insecure third-party browser that I'd recommend you uninstall from your Vista SP2 along with your unsupported Chrome browser.
32-bit Vista Home Premium SP2 * Firefox ESR v52.3.0 * NS Premium v220.127.116.11 * Malwarebytes v3.1.2
Edited by lmacri, 24 August 2017 - 11:07 AM.