@pascalchevrel explained on irc that the ```.*``` are supposed to match version numbers-- it's *probably* fine, but perhaps we could use the more specific regex for version numbers from https://github.com/mozilla/mcom-tests/blob/2b912125bb7f0eb2dba32b24dd8af616f5e4971a/tests/test_redirect_landing.py#L105 instead?
```
RewriteCond %{REQUEST_URI} !^/zh-TW/firefox(/(?:\d+\.\d+\.?(?:\d+)?\.?(?:\d+)?(?:[a|b]?)(?:\d*)(?:pre)?(?:\d)?))?/firstrun/?
RewriteCond %{REQUEST_URI} !^/zh-TW/firefox(/(?:\d+\.\d+\.?(?:\d+)?\.?(?:\d+)?(?:[a|b]?)(?:\d*)(?:pre)?(?:\d)?))?/tour/?
RewriteCond %{REQUEST_URI} !^/zh-TW/firefox(/(?:\d+\.\d+\.?(?:\d+)?\.?(?:\d+)?(?:[a|b]?)(?:\d*)(?:pre)?(?:\d)?))?/whatsnew/?
```