No. It is a web browser.
https://addons.mozilla.org/en-US/firefox/addon/126
The little picture to the left of the URL in the address bar is called a favicon.
Detects Duplicate Bookmarks when bookmarks are added and specify where is the previous URL. You can also search and delete duplicates URL already in your Bookmarks. Firefox 3.5 support is available from http://bookmarkdd.mozdev.org in version 1.0.0. https://addons.mozilla.org/en-US/firefox/addon/1553
IE Tab: https://addons.mozilla.org/en-US/firefox/addon/1419
right beside stop, reload, back and all that. lol
Because that is a bad URL.
You could install a program such as "K9 Web Protection". If you use Mozilla Firefox there is an addon which allows you to block websites by URL so that when the URL is accessed it will redirect to a specified page and not show the page that you blocked. Easy right click to add a site to the list and you can lock the control panel with a password, specify the times which the filter is active, and block all sites on the internet
Yes, you can set URL homepage for both of them. Take a URL and set it to homepage in both browsers.
Someone can look up a URL or Uniform Resource Locator on any modern web browser. These include Internet Explorer, Safari, Opera, Firefox, and Chrome.
There is an option called default page what firefox is trying to open every time a new page is called. But in this case it appears the link is no longer valid. Or someone has set an invalid URL as your default startup page. You can go to the tools > options menu and change the URL in the main tab of the little window than opens.
The easiest way to block a website on Firefox is to use a third-party add-on. To add an add-on, open Firefox, click "Tools", then click "Add-ons". Search for that add-on you want, then Install it. You may need to restart Firefox for the add-on to take effect.