Firefox

Firefox is the default browser on a Fedora machine, so you do not need to install it. Just click the small earth icon in the panel, or choose Applications -> Internet -> Firefox Web Browser.

Firefox has some very nice extensions, which can make your life a lot easier. Resently I installed the developer toolbar and the html validator.

To add a plugin, start Firefox and choose Tools -> Extensions. In the bottom right corner of the window, click Get More Extensions. This will take you to the Firefox extensions page. Pick any extension you like and click the headline... on the next page click the Install now button.

In the Extensions window you'll now see the the new extension. It will inform you if you need to restart Firefox.

Installing the 'Html Validator' extension

After installing the 'Html Validator' extension, I restarted Firefox and got a html page with this this error:

FATAL ERROR : The dynamic C library contained in the extension file could not be found

This is what I did:

1. Remove the extension: Tools -> Extensions. Find the 'Html Validator' extension, mark it and click the Uninstall button.
2. Choose Applications -> Add/Remove Software. And install these 3 packages:
   compat-libstdc++-296
   compat-libstdc++-33
   tidy
3. Install the extension again, restart Firefox and Voila!

So save yourself some trouble, and install the above mentioned packages before you install the extension.