diff --git a/README.md b/README.md
index e790e51f1..37c87acd7 100644
--- a/README.md
+++ b/README.md
@@ -24,6 +24,8 @@ Install [Greasemonkey](https://addons.mozilla.org/en-US/firefox/addon/greasemonk
 ### Chromium
 4chan X is available as a Chrome extension. The Chrome extension has the additional feature of being able to sync your settings and data with other devices via Chrome Sync.
 
+**Known Issues**: Whenever the Chrome extension is updated, until you hard refresh (F5) the tab, 4chan X is unable to save any data (such as posts marked as yours and settings changes). The userscript version does not have this issue.
+
 - **Chromium**, **Vivaldi**: **[Download 4chan X](https://www.4chan-x.net/builds/4chan-X.crx)**, then open `chrome://extensions` and drag the downloaded file onto the page. Alternatively, you can install 4chan X from the **[Chrome store](https://chrome.google.com/webstore/detail/ohnjgmpcibpbafdlkimncjhflgedgpam)**.
 - **Opera**: **[Click to install 4chan X](https://www.4chan-x.net/builds/4chan-X.crx)**, then follow the prompts to activate it in your extension manager. Note: This version does not work with Opera 12; try [loadletter's fork](https://github.com/loadletter/4chan-x) instead.
 - **Chrome**: Install 4chan X from the **[Chrome store](https://chrome.google.com/webstore/detail/ohnjgmpcibpbafdlkimncjhflgedgpam)**.