Firefox

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Fix for “Close Firefox: A copy of Firefox is already open.” error

May 16, 2010 - 22 Comments
close firefox already open

“Close Firefox – A copy of Firefox is already open. Only one copy of Firefox can be open at a time.” You may have gotten this message if Firefox has recently crashed or you killed the process. The reason this error is appearing is likely because there is a lock file on your Firefox profile. … Read More

Delete Cookies on a Mac

Nov 10, 2009 - 20 Comments

Deleting cookies on the Mac depends on the specific web browser in use, thus if you want to delete all cookies, you’ll want to accomplish this for every browser app. Considering the web browsers most commonly used in Mac OS X are Safari, Chrome, and Firefox, we will show how to delete cookies in each … Read More

Use Firefox to Stop Annoying Web Encounters

Sep 20, 2009 - 1 Comment
firefox_icon

MouseOver popups, self-starting blasting audio, auto-refreshing webpages, random sound effects, obnoxious flash ads, resizing of your browser window… oh the web is filled with all sorts of things that are sure to annoy web browsers a world over. Lifehacker came up witha great list of fixes that you can implement in Firefox to reduce the … Read More

View PDF’s inside Firefox with the Firefox-Mac-PDF browser extension

Aug 6, 2009 - 1 Comment

I like Safari but find myself in Firefox nearly always because of a multitude of reasons. One thing I’ve long missed though is the ability to view PDF’s within the browser within Firefox, which Safari does wonderfully. If you’re tired of Firefox launching the Preview app (or even worse if you’re settings are different: Acrobat), … Read More

Run Firefox 3 and Firefox 2 simultaneously

Jun 21, 2008 - 1 Comment

Life is officially easier for front-end web developers, you can now easily test browser compatibility by running Firefox 2 and Firefox 3 concurrently with a great utility called MultiFirefox. Simply install MultiFirefox, then rename one of the Firefox applications (to say, Firefox 3), and upon launch you can select either application version to run. MultiFirefox … Read More

Cool Firefox tip – Instant on-page text search

Dec 16, 2007 - 2 Comments

Here’s a really cool Firefox tip that was just passed along to me. You can instantly search for any text on a web page by hitting the forward slash and typing that word. So for example, you want to find “Firefox” on this page, you would type /firefox – that’s it! The first instance of … Read More

Enable spell checking in Firefox text input fields

Jun 6, 2007 - 10 Comments

Here’s a tip that I think you’ll appreciate as much as I do. By editing an entry within the about:config configuration menu of Firefox, you can enable spell checking in text input fields, meaning as you type into Google, your search term will be spell checked client-side! I type pretty fast so I frequently end … Read More

Firefox keyboard shortcut to retrieve closed tabs

May 24, 2007 - 44 Comments

I can’t count the number of times I have been closing windows or tabs and have accidentally a tab that I wanted kept open. In the past, it has been annoying at best and disastrous at worst, but now I no longer have any issues… why you may ask? Because I know a keyboard shortcut … Read More

15 Must know Firefox shortcuts

May 18, 2007 - 24 Comments

For many years I was a die-hard Safari fan, you couldn’t have pulled me away from it… that is, until Firefox came along. Firefox is speedy, secure, and entirely cross platform compatible, and is now my primary web browser of choice. One of the better ways to improve the user experience with any application is … Read More

Disable tab scrolling in Firefox 2

Apr 19, 2007 - 4 Comments

One of my biggest peeves with Firefox 2 is how the tab system works with the scroll bar. Prior to version 2, tabs would squish in size to accommodate more. Being a tab heavy user I found this to be perfectly adequate and I got used to how it works. Enter Firefox 2; instead of … Read More

Disable browser window resizing in Firefox

Apr 11, 2007 - 8 Comments

Development etiquette has generally made web browsing a more pleasant experience over the years, removing such horrors as blinking text and the background midi. Unfortunately, there are a few annoyances still left on web sites, and one of the worst is the forced resizing of your web browser. Nothing peeves me more than having my … Read More

Change the Default Web Browser in Mac OS X

Apr 6, 2007 - 17 Comments
Default web browser in Mac OS X

Updated: 7/3/2014 Ever wondered how to change the default web browser app on your Mac? Maybe you prefer Chrome to Safari, or maybe you want to use Firefox instead of Safari, or vice versa? Whatever your choice, it’s easy to do and it’s not an unusual question, in fact, one of our readers Sarah R. … Read More

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