Throbberとは何ですか？

Throbberはhttp://deathbyvanilla.comによって開発されたChromeの拡張機能で、その主な機能は「A vintage user interface element for your modern browser.」です。

拡張機能のスクリーンショット

Throbber拡張機能のCRXファイルをダウンロード

Throbber拡張子のファイルをcrx形式でダウンロードし、ブラウザにChrome拡張機能を手動でインストールするか、crxファイルを友達と共有して簡単にChrome拡張機能をインストールします。

拡張機能の使用方法

Relive the 90s with the Throbber extension!
Choose to go Netscape style or Netscape-killer style, depending on your mood.

~~~

As far back as the first web client, NCSA Mosaic, there has been a need to convey that the browser is not frozen and pages are, in fact, loading.
This is where the first such activity indicator came in.

It was believed to gain the name "throbber" when Netscape 1.0 was released with a pulsing "N" logo. This animation was actually a last-minute choice, since the animation the Netscape team wanted to use was based on the name "Mosaic," a name they were no longer allowed to use for legal reasons.

This lead Netscape to hold an animation contest to replace the throbbing N, and the winner was a monolithic N standing on a planetary object as meteors rain. Netscape tweaked it to the recognizable animation that lasted for years through many Netscape versions with little modification.
Two of those N variants are included in this extension.

When Microsoft came to town to compete in the browser-space against Netscape, they developed their own throbber featuring a globe rotating through the Internet Explorer icon.
One of the most popular variants of that animation is also included in this extension.

Eventually web browsers would evolve to support tabbed browsing and include a simple activity indicator on each tab until loading completes, spelling the end for the classic throbber. Thus this extension provides little practicality in Chrome, and is just a fun little throwback to the roots of the world wide web.

Sources:
https://www.jwz.org/doc/about-jwz.html
https://web.archive.org/web/20080206124223/http://wp.netscape.com/home/contest/index.html
https://en.wikipedia.org/wiki/Throbber
https://en.wikipedia.org/wiki/Browser_wars#First_Browser_War

拡張機能の基本情報

名前	Throbber
ID	bhdngfbcaehcdgpohimclmbkkejhdieo
公式URL	https://chrome.google.com/webstore/detail/throbber/bhdngfbcaehcdgpohimclmbkkejhdieo
説明	A vintage user interface element for your modern browser.
ファイルサイズ	1016 KB
インストール数	371
現在のバージョン	0.2
最終更新日	2017-11-02
公開日	2017-11-02
評価	4.17/5 合計 6 レビュー
開発者	http://deathbyvanilla.com
Eメール	[email protected]
支払い方法	free
対応言語	en
manifest.json
{ "update_url": "https:\/\/clients2.google.com\/service\/update2\/crx", "manifest_version": 2, "name": "Throbber", "description": "A vintage user interface element for your modern browser.", "version": "0.2", "author": "Wilson", "options_page": "options.html", "options_ui": { "page": "options.html", "chrome_style": true }, "browser_action": { "default_icon": "img\/mozillic1\/icon1.png" }, "permissions": [ "storage" ], "incognito": "spanning", "background": { "scripts": [ "background.js" ], "persistent": false }, "icons": { "16": "img\/icon_16.png", "48": "img\/icon_48.png", "128": "img\/icon_128.png" } }