fontSwapper - Change selected sites font

kiwi browser: blank page opens when I click the extension

When I click the extension, nothing but a blank page opens. The page has the following link: chrome-extension://mhhcggkelljdbflokkmbnfaoeilnngll/popup/index.html

The problem may be due to the browser I am using, which is essentially Chrome with extensions for Android, however I have not had issues using other extensions in this browser.