X Region Block

About

This extension offers a free trial period. A fee will be charged after the trial ends to maintain service operations.

X Region Block is a timeline filtering tool for X/Twitter. It automatically detects the account location of each tweet's author. If the location is in your block list, the tweet will be filtered automatically.

Select countries to block by continent and sub-region
Three filter modes: Hide / Placeholder / Blur
Smart rate limiting with adaptive query speed
Local persistent cache with customizable duration, no repeated queries for known users
Only processes visible tweets, no wasted resources

Quick Start

Click the extension icon in the browser toolbar to open the control panel
Make sure the master switch in the top right is set to "Enabled"
Switch to the "Regions" tab and check the countries you want to block
Choose a filter mode (Hide / Placeholder / Blur) at the bottom of the same page
Browse X/Twitter — tweets from blocked regions will be filtered automatically

Features

Filter Modes

Mode	Effect
Hide	Blocked tweets are completely removed from the timeline with no trace
Placeholder	A slim indicator bar is shown with the blocked username and region. Click "Show" to reveal the original content
Blur	Tweet content is blurred. Hover to view clearly, move away to blur again

Control Panel Tabs

Tab	Function
Blocked	View the count and list of blocked regions. Remove individually or clear all at once
Regions	Browse, search, and check countries to block by continent and sub-region. Set filter mode and cache duration below

Data Cache

The extension saves queried user location data in your browser's local cache to avoid repeated queries. The more cache you have, the fewer API calls are needed, and the smoother the extension runs. In the cache settings at the bottom of the "Regions" tab, you can:

Choose cache duration: 7 days / 30 days / 90 days / Permanent
View the current number of cached entries
Manually clear all cache

Status Indicator

Indicator	Meaning
Green badge (bottom right)	Shows the number of filtered tweets in the current session. Click to dismiss

Supported Regions

Continent	Sub-region	Countries / Regions
Asia	East Asia	China, Hong Kong, Japan, South Korea, Taiwan
	Southeast Asia	Indonesia, Malaysia, Philippines, Singapore, Thailand, Vietnam
	South Asia	Bangladesh, India, Pakistan
	West Asia	Iran, Iraq, Israel, Saudi Arabia, Turkey, UAE
Europe	Western Europe	Austria, Belgium, France, Germany, Ireland, Netherlands, Switzerland, United Kingdom
	Southern Europe	Greece, Italy, Portugal, Spain
	Northern Europe	Denmark, Finland, Norway, Sweden
	Eastern Europe	Czech Republic, Poland, Romania, Russia, Ukraine
North America	Northern America	Canada, Mexico, United States
South America	Southern Cone	Argentina, Chile
	Andean	Colombia, Peru, Venezuela
	Eastern South America	Brazil
Africa	Northern Africa	Algeria, Egypt
	Western Africa	Nigeria
	Southern Africa	South Africa
Oceania	Australia & NZ	Australia, New Zealand

FAQ

Why are some tweets not filtered?

The extension filters based on the "Account based in" field in user profiles. If a user hasn't set their location, or their location isn't in your block list, their tweets won't be filtered.

Does filtering affect normal use of X/Twitter?

No. The extension only reads page content. It doesn't modify your account settings, post tweets, or perform any actions. Everything returns to normal after disabling the extension.

Why do some tweets take a moment to get filtered?

The extension needs to query each user's account location. X/Twitter limits query frequency (approximately 50 requests per 15 minutes). The extension automatically adjusts query speed and gets faster as the cache builds up. Keeping a longer cache duration is recommended for a smoother experience.

After turning off the extension, filtering doesn't stop immediately?

Try refreshing the X/Twitter page. Setting changes take full effect after a page refresh.

Does the extension collect my personal data?

No. All data is stored locally in your browser (chrome.storage) and never sent to any external server. Cached query results are used only to avoid repeated requests and are automatically cleared when expired.

What happens if I clear the cache?

Clearing the cache deletes previously queried user information. The next time you encounter the same user's tweets, a new query will be needed. This uses more API quota but doesn't affect normal extension functionality.

Why doesn't switching filter modes take effect?

Setting changes require a page refresh on X/Twitter to take full effect.

Can I use the extension in Incognito mode?

Go to chrome://extensions, find this extension, click "Details", and enable "Allow in Incognito".