Author: By J. D. BIERSDORFER

Android and iOS have a setting to mute alerts, calls and notifications when you need some peace and quiet, but you can still let important calls ring through.

A browser that’s set to compress or block images, ads and other bandwidth-hogging parts of a web page can save you megabytes.

Apple has a range of models in its tablet line, but you may not need the most expensive one to suit your image-editing needs.

Microsoft has a collection of little programs that try to fix problems on your Windows PC, but depending on your system, the success rate can be hit or miss.

If you have gotten a message from someone who claims to have dirt on you — and shows off, as proof, a password you’ve previously used — here’s what happened.

Mozilla’s overhaul of its flagship browser is incompatible with certain add-ons, but you can still rescue your saved passwords with a little extra effort.

If the thought of saving a huge folder of photo files in a different format makes you tired, perk up. You can do them all at once, and you may not even need expensive software.

The latest version of Apple’s iOS software for the iPad tries to save you time with typing shortcuts — once you know what they are.

Tired of seeing your friends as initials in tinted circles? If they don’t have a profile photo already, you can add your own to their address-book entries.

Apple may prevent you from swapping out some of its own apps for your preferred defaults, but you can at least get your choices within easy reach.