Hi there! I understand you're running into a "Bad Request Request too long" error in Firefox when using the PCH+ app, and you have been closing and reopening the browser to fix it temporarily. That’s definitely something we can work through together.

This error usually happens when the browser's cookies related to the site get corrupted or when there are too many cookies stored, causing the request headers to become oversized.

Here’s a simple step-by-step to try that should help fix this for you:

1. Clear Cookies for the PCH+ Site:
- Open Firefox.
- Click on the three horizontal bars (menu) at the top right.
- Select Settings (or Options).
- Click Privacy & Security on the left pane.
- Scroll down to Cookies and Site Data, then click Manage Data…
- In the search field, type "pch" or "pch.com" to find all cookies related to PCH.
- Select those and click Remove Selected, then Save Changes.

2. Clear Cache:
- In the same Privacy & Security tab, under Cookies and Site Data, click Clear Data…
- Check only Cached Web Content (you can leave cookies unchecked here since you removed specific cookies earlier).
- Click Clear.

3. Restart Firefox:
- Close all Firefox windows and reopen the browser.

4. Check for Updates:
- While in the Firefox menu, go to Help > About Firefox to make sure you are running the latest version of Firefox. Updates often fix underlying issues.

After this, try accessing the PCH+ app again and see if the error persists.

If you’ve already tried clearing all cookies or this solution doesn’t work, let me know. We can dive deeper into possible causes like extensions interfering, or check your network settings next.

Does this make sense so far? Would you like me to walk you through any step?