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Deprecated: Return type of Requests_Cookie_Jar::offsetExists($key) should either be compatible with ArrayAccess::offsetExists(mixed $offset): bool, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /home2/learnera/public_html/tech/wp-includes/Requests/Cookie/Jar.php on line 63

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Deprecated: Return type of Requests_Utility_CaseInsensitiveDictionary::offsetUnset($key) should either be compatible with ArrayAccess::offsetUnset(mixed $offset): void, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /home2/learnera/public_html/tech/wp-includes/Requests/Utility/CaseInsensitiveDictionary.php on line 82

Deprecated: Return type of Requests_Utility_CaseInsensitiveDictionary::getIterator() should either be compatible with IteratorAggregate::getIterator(): Traversable, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /home2/learnera/public_html/tech/wp-includes/Requests/Utility/CaseInsensitiveDictionary.php on line 91

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Firebug Tutorial Part 1 – Introduction | Rajesh

Firebug Tutorial Part 1 – Introduction

Posted on May 9, 2014 by Rajesh

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Firebug is a free open source tool that allows debugging, editing and monitoring any website’s CSS, HTML, DOM and JavaScript. It can also be used for Performance analysis.

How to install firebug?

Installing on Firefox browser

Firebug is developed as a Firefox add-on. It can be added to Firefox browser as like other add-ons. The add-on can be downloaded from Firefox add-on page https://addons.mozilla.org/en-US/firefox/

Installing on Non-Firefox browsers

For non-Firefox browsers there is a lite version available to use. It can be downloaded from here.https://getfirebug.com/firebuglite

It can be imported like a normal script in any html page. See code below.

<script type='text/javascript' src='http://getfirebug.com/releases/lite/1.2/firebug-lite-compressed.js'>
</script>

Once the firebug installed while pressing the F12 button you will get a window like this.


download

Firebug Modes
Dock View

Firebug Window attached as a panel to browser (useful for HTML,CSS tweaks)

Window mode

Separate window for firebug (useful for Net tab, performance related tuning)
download (1)
To change the view either click the toggle button in the right corner or click Ctrl+F12 to do by shortcut.

Related posts:

  1. Install adobe flash player on Linux 6.5 for firefox

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