Can I change proxy settings on my stock Android browser?
With terminal on your droid or via adb

The android web browser will read the proxy settings in its settings database. 

Spawn a shell:

&gt; adb shell


Init sqlite3 database manager to edit the settings database.

# sqlite3 /data/data/com.google.android.providers.settings/databases/settings.db


Run the query bruh.

sqlite&gt; INSERT INTO system VALUES(99,’http_proxy', 'proxy:port');


Close the session.

sqlite&gt;.exit


Profit.