"Troubleshoot Login Issues" article has incorrect and outdated information

[diyaag26]

Issue Description

"Troubleshoot Login Issues" article has incorrect and outdated information

URL of the Page with the Issue

https://wordpress.org/documentation/article/troubleshoot-login-issues/

Section of Page with the issue

1. "Enable Cookies" section
2. "Check your Firewall" section
3. External link in "Enable Cookies" section

Why is this a problem?

1. "Enable Cookies" section tells users to "clear browser
   cookies" to enable cookies - these are completely different
   actions and the instruction is incorrect/misleading.

2. "Check your Firewall" section mentions "eTrust Personal
   Firewall" which is a discontinued product - confuses modern users.

3. The external link for clearing cache only points to a
   Google/Chrome page - unhelpful for Firefox, Safari, Edge users.

Suggested Fix

1. "Enable Cookies" section tells users to "clear browser
   cookies" to enable cookies - these are completely different
   actions and the instruction is incorrect/misleading.

2. "Check your Firewall" section mentions "eTrust Personal
   Firewall" which is a discontinued product - confuses modern users.

3. The external link for clearing cache only points to a
   Google/Chrome page - unhelpful for Firefox, Safari, Edge users.

[github-actions]

Heads up @WordPress/docs-issues-coordinators, we have a new issue open. Time to use 'em labels.