Highlights rare Japanese words with the help of BCCWJ frequencylist list on web pages. Facilitates Japanese language learning.

Latest Version

Version
0.1.2
Update
September 27, 2020
Size
43.24MiB
Developer
Category
Users
300
Rating
5 ★
Manifest Version
2
Web Store Status
Languages Support
English
中文 (简体)
日本語
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Permissions
ContextMenus
Storage
ActiveTab
Tts
Identity
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Japanese Highlighter Extension

Japanese Highlighter highlights rare Japanese dictionary words, idioms and proverbs on web pages.
It helps non-native Japanese learners to discover new expressions while they are browsing the Internet.
Highlighting of rare words is useful because some people do not even notice vaguely known words, especially when these words are not critical for understanding of the text that they read. One possible explanation of this strange and pertexing effect is that mind of a reader is concentrated on understanding the meaning and structure of the text, and after finishing reading a sentence many readers won't go back to check the meaning of unfamiliar words that they have already forgot. E.g. some readers will forget to check the definition of word \"pertexing\" from the previous sentence which, in fact, doesn't exist. And even if you did check it, you still can try this extension, it highlights only real Japanese dictionary words and idioms =)

The source code is here if you are curious: https://github.com/cyj98/JapaneseHighlight

This extension if a fork of mechatroner's word-discoverer, which can be found here: https://chrome.google.com/webstore/detail/word-discoverer-expand-yo/noncaeikjgpbdeoocblijjgegnobogib.

You can also check my modified English version which use better frquency list and deinflector(can interpret dogs to dog etc.): https://github.com/cyj98/word-discoverer

Here are some features of the extension:

Depending on your vocabulary size, you can adjust frequency threshold of highlighted words e.g. skip 8000 most common Japanese words, and highlight all the rest. There's no way to set such threshold for idioms and proverbs, the extension can either highlight all of them or none.

Japanese Highlighter can operate in two modes:
In the first (default) mode it highlight all Internet pages except sites that you add to a special list. E.g. you may not want to highlight anything from youtube.
In the second mode Japanese Highlighter highlights only sites from another special list - your favorite Japanese sites. By default this list is empty, so unless you add there something (e.g. facebook, wikipedia), it won't highlight anything at all.

Currently there are 84364 words in the extension's dictionary. If you're interested you can look at them on project's github page.

If you known definition of a highlighted word, you can add it to your personal vocabulary and it won't be detected any more. You can always view your vocabulary or save it as a text file.

By selecting text of a word (or idiom) and right clicking on it you can either add the word to your vocabulary or view it's definition in one of 4 online dictionaries using context menu references. And, of course, you can also use Japanese Highlighter in combination with your favorite dictionary app (e.g. \"Google dictionary\" extension)You can also use custom dictionary.
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Source Manifest.json

{"update_url": "https://clients2.google.com/service/update2/crx", "author": "cyj98", "background": { "scripts": ["scripts/background.js"] }, "browser_action": { "default_popup": "html/popup.html" }, "content_scripts": [ { "css": ["styles/content_script.css"], "js": ["scripts/content_script.js"], "matches": ["\\u003Call_urls>"], "run_at": "document_start" } ], "default_locale": "en", "description": "__MSG_appDesc__", "icons": { "48": "images/result48.png" }, "manifest_version": 2, "name": "__MSG_appName__", "options_ui": { "page": "html/options.html" }, "content_security_policy": "script-src 'self' https://*.google.com 'unsafe-eval'; object-src 'self'", "oauth2": { "client_id": "516018828037-t43mp457830km1u8qs6bdbru076jq36d.apps.googleusercontent.com", "scopes": ["https://www.googleapis.com/auth/drive.file"] }, "permissions": ["contextMenus", "storage", "activeTab", "tts", "identity"], "version": "0.1.2", "web_accessible_resources": ["data/mecab.data", "data/mecab.wasm", "data/mybccwj.csv"]}
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How to download and manually install Japanese Highlighter extension for Chrome

Looking for a way to install Japanese Highlighter extensions for Chrome, you can search for them in the Chrome Web Store, clicking the "Add to Chrome" button, and following the straightforward process.

However, you may need to install Japanese Highlighter extensions manually, this article outlines two simple methods to effortlessly install Japanese Highlighter extensions, whether they come as unpacked folders in compressed formats like .zip or as .crx files.

Method 1: Download Japanese Highlighter extension and manually install through Drag &Drop

If you ever need to manually install a Japanese Highlighter extension for Chrome, don't worry, it's a simple process. Just follow these easy steps, and you will have your extension ready to use in no time.

Step 1: Download the Japanese Highlighter Extension by clicking the "Download CRX" button on the website.

Look for the Japanese Highlighter extension you wish to install. Go to the website and download the Japanese Highlighter extension package, which is usually a .CRX file and comes in a zipped file. Here ".crx" file is the format for Japanese Highlighter extension that contains all the data.

Step 2: Extract &Arrange Files

Once the file is downloaded, extract that file into its own folder. Similarly, give that extension files a permanent home. In other words, keep it in a folder that you don't accidentally delete it because these files will be needed to make that extension work.

Step 3: Go to the Chrome Extensions Page

Open Google Chrome and in the address bar, type chrome://extensions; it will open the Google Chrome extensions page. Make sure that "My extensions" is selected in the sidebar.

Step 4: Drag and Drop the Extension

Now, go to the folder where you extracted the Japanese Highlighter extension and drag &drop the extension file from there anywhere onto the extension page within Google Chrome.

Step 5: Complete the Installation

Once you drag and drop the extension file, follow the steps that Google Chrome takes you through. Similarly, if the extension file is of .crx file format, you will be required to review the permissions and then add the extension.

Now, you can manage that added extension as you would like to with any other Chrome extension that you added through Chrome Webstore. Its icon will also appear in the Google Chrome Menu on the right side of the address bar once you activate it.

Method 2: Download Japanese Highlighter extension for Chrome and install in Developer Mode

This is another method to install Japanese Highlighter extension manually, but the twist is that here, you install by enabling the developer mode option provided in Google Chrome. This mode is commonly used for testing extensions or running unpublished tools.

Step 1: Download the Japanese Highlighter extension file

Select and download the Japanese Highlighter extension by clicking the 'Download CRX' button on the website.

Step 2: Extract the downloaded contents

Convert the file to a ZIP file if it is in CRX format then extract the Japanese Highlighter extension zip file or folder that you downloaded. Make sure you extract it using the same folder name and keep it safely in another folder, so you don't delete it by mistake. The extracted folder will be needed to keep your Japanese Highlighter extension running.

Step 3: Open Chrome Extension Setting Page

In the address bar of Google Chrome, type chrome://extensions and open the Chrome Extension Page.

Step 4: Enable Developer Mode

After opening the Chrome Extension page, look at the top right side, and you will find the toggle option of "Developer mode."Simply enable that developer mode option.

Step 5: Load the Unpacked Extension

Once you enable the developer mode option, you will see the menu of Load Unpacked, Pack Extensions and Update. From that, select the option "Load unpacked."

Step 6: Select the Extension Folder

Once the pop-up opens upon clicking Load unpacked, select the Japanese Highlighter extension directory and click on the "Select Folder "button.

Step 7: Confirm and Install

After you select an extension folder of a Google Chrome extension you're installing manually, confirm its installation for the final time and let the installation complete.

Conclusion

Here we've made a step-by-step guide on How to manually install Japanese Highlighter extension in 2 ways. We hope this guide proves helpful.

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