I want to change it back to safari browser as it previously was set up.
iPhone 6, iOS 12
Here's how you change the email address (Apple ID) you use for your Apple Account while retaining everything in your account:
1. Go to https://appleid.apple.com and sign in.
2. In the Sign-In and Security section, choose Apple ID.
3. Enter the email address that you want to use as your Apple ID.
4. Choose Change Apple ID.
5. If you changed your Apple ID to a third-party email address, check your email for a verification code, then enter the code. Learn what to do if you didn't get the email. --> If you didn't receive your verification or reset email - Apple Support
6. If you use services like iCloud or Messages to share with friends and colleagues, sign in to those services with your updated Apple ID. --> What to do after you change your Apple ID or password - Apple Support
For more details, read the document: "Change your Apple ID" --> Change your Apple ID - Apple Support
If Apple tries sending you a verification email and you do not receive it, read this support article --> If you didn't receive your verification or reset email - Apple Support
"When you make certain updates to your Apple ID, we’ll send you an email to help you complete the update. For example, you might have reset your password, reset your security questions, or added a new email address to your account."
If you find you can’t sign in, reset your password, or receive verification codes, you can request account recovery (go to this document: How to use account recovery when you can’t reset your Apple ID password - Apple Support ) to regain access to your account. Account recovery might take a few days or longer, depending on the specific account information you can provide to verify your identity.
If necessary, contact Apple for help with Apple ID account security --> Contact Apple for help with Apple ID account security - Apple Support
"This article provides country-specific Apple Support contact information for customers seeking help with their Apple ID password or other security-related issues."
For the second question:
Change the default web browser or email app on your iPhone, iPad, or iPod touch - Apple Support
How to change your default web browser or email app
1. Go to Settings and scroll down until you find the browser app or the email app.
2. Tap the app, then tap Default Browser App or Default Mail App.
3. Select a web browser or email app to set it as the default. A checkmark appears to confirm it's the default.
If you don't see the option to set a web browser or email app as your default, the developer might not support it. Contact the app developer to learn more.
Here's how you change the email address (Apple ID) you use for your Apple Account while retaining everything in your account:
1. Go to https://appleid.apple.com and sign in.
2. In the Sign-In and Security section, choose Apple ID.
3. Enter the email address that you want to use as your Apple ID.
4. Choose Change Apple ID.
5. If you changed your Apple ID to a third-party email address, check your email for a verification code, then enter the code. Learn what to do if you didn't get the email. --> If you didn't receive your verification or reset email - Apple Support
6. If you use services like iCloud or Messages to share with friends and colleagues, sign in to those services with your updated Apple ID. --> What to do after you change your Apple ID or password - Apple Support
For more details, read the document: "Change your Apple ID" --> Change your Apple ID - Apple Support
If Apple tries sending you a verification email and you do not receive it, read this support article --> If you didn't receive your verification or reset email - Apple Support
"When you make certain updates to your Apple ID, we’ll send you an email to help you complete the update. For example, you might have reset your password, reset your security questions, or added a new email address to your account."
If you find you can’t sign in, reset your password, or receive verification codes, you can request account recovery (go to this document: How to use account recovery when you can’t reset your Apple ID password - Apple Support ) to regain access to your account. Account recovery might take a few days or longer, depending on the specific account information you can provide to verify your identity.
If necessary, contact Apple for help with Apple ID account security --> Contact Apple for help with Apple ID account security - Apple Support
"This article provides country-specific Apple Support contact information for customers seeking help with their Apple ID password or other security-related issues."
For the second question:
Change the default web browser or email app on your iPhone, iPad, or iPod touch - Apple Support
How to change your default web browser or email app
1. Go to Settings and scroll down until you find the browser app or the email app.
2. Tap the app, then tap Default Browser App or Default Mail App.
3. Select a web browser or email app to set it as the default. A checkmark appears to confirm it's the default.
If you don't see the option to set a web browser or email app as your default, the developer might not support it. Contact the app developer to learn more.
I need to change my email address
And if you read the post I made last summer all will be revealed.
I need to change my appleID email address
