extension

Most Web sites changes frequently, and it's sometimes useful to know what these changes consist of. SiteDelta is an extension for Firefox that can identify changes made to a Web page since your last visit and even tell you what the previous version of the page said.

Like most Firefox extensions, SiteDelta requires a browser restart to finish installation. Once installed, the extension appeared as a delta symbol (a triangle) in Firefox's status bar. Click the icon and the extension will scan the page; come back later, click it again, and SiteDelta will highlight all changes that have … Read more

Instagram, the popular mobile social network for sharing photos, can be fun and addictive. However, unlike Facebook or Twitter, Instagram doesn't have an official desktop presence to go along with its mobile app. If you're already on your computer, picking up your Android or iOS device just to check your Instagram feed is less than ideal.

Nicole Cozma recently went over using Extagram, a Web site that allows you to browse Instagram on the Web. Another desktop solution is a Chrome extension that allows you to check your feed directly from the Chrome browser. Here's how to … Read more

I read once that Jonathan Franzen writes his novels using an old laptop because it does not have a wireless antenna. He also took the extra precaution of gluing an Ethernet jack into the Ethernet port and then clipping the cable so that there was no way -- wired or wirelessly -- he could access the Internet while writing.

Knowing Franzen needed to take such measures to stay focused made me feel a little better about myself and my time-wasting ways on the Internet. If you need some assistance staying on point (and off Facebook) during the workday, WasteNoTime could … Read more

Many of the files I receive attached to Gmail messages end up in my Google Drive account. Previously this required downloading or viewing the file, saving it to a drive of the PC I'm using, signing into and opening Google Drive (formerly Google Docs), and uploading the file.

That's a lot of mileage for a file to travel just to get from one Google service to another.

Last month, Jason Cipriani of CNET's Blog Network described a technique developed by Amit Agarwal that automatically adds Gmail attachments to Google Drive.

As Jason explains, the process entails copying … Read more

I've been on a screenshot bent lately, and here is a screenshot tip that will appeal to both Mac and PC users. If you take a lot of screenshots of Web pages, check out Awesome Screenshot, a handy little Chrome extension that's easy to use, with just the right amount of features.

When it installs, it adds a small button to the Chrome toolbar. Click on the button, which looks like a camera lens, to see the three capture options: Capture Visible Part of Page, Capture Selected Area, and Capture Entire Page.

When you capture a screenshot, Awesome … Read more

I figured that by now most people would have grown accustomed to Facebook's Timeline interface, but my post from a couple months ago about a Chrome extension that hides Timeline remains one of my most-clicked-on stories. Given the apparent interest in this topic, I searched for a Firefox add-on that did that same thing. Lo and behold, I found the very same extension.

Install the TimeLineRemove extension for Firefox by clicking the link and then clicking Allow. Then on the next window, click the Install Now button.

The add-on is enabled by default. Head to Facebook or refresh the … Read more

Google Bookmarks is one of many services that Google offers that allows you to keep your data in the cloud instead of locked on your computer. As the name would suggest, Google Bookmarks allows you to access your bookmarks from anywhere as long as you're signed into your Google account. Yet Another Google Bookmarks Extension, or YAGBE, makes your Google Bookmarks easier to access with a click of a button.

Like most Chrome extensions, YAGBE installs easily, appearing as an icon to the right of the address bar. Clicking the icon brings up a list of bookmarks organized in … Read more

By midafternoon, I usually have so many tabs open, I can't keep track of them all. It's really a nuisance when I have music playing on one of my many tabs and can't locate it quickly to mute the song that's playing to answer the phone. Enter Music Controller, a Chrome extension that adds a button to the right of your URL bar. The button, which features a music note, provides access to any song currently playing on any tab in your current Chrome window.

Music Controller claims to work with Google Music, Grooveshark, Mog, Rdio, … Read more

When is "Homeland" on again next? When will your DVR pick up the next episode of "Modern Family"? Is "SNL" a repeat this Saturday? Get these answers and more with My Episode Guide. This Chrome extension keeps you posted on how many days remain until the next episodes of your favorite TV shows air.

My Episode Guide adds a small button to the right of Chrome's URL bar. After you install the extension, the button's icon is a yellow smiley face with sunglasses. After you add your favorite shows, the button shows … Read more