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how to delete blank righthand sidebar in on mail screen

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Just about one third of my email screen is taken up with a blank right hand sidebar. How to I expand the screen or delete the sidebar/

Just about one third of my email screen is taken up with a blank right hand sidebar. How to I expand the screen or delete the sidebar/

Chosen solution

I suspect the site is trying to display an advertisement in that space but perhaps you're blocking it?

You can use add-ons or custom style rules to modify the appearance or behavior of websites. If you use a popular mail site, there might already be one to do what you want to do. Some places to search:

Note: To apply user styles to pages in Firefox, you can use either of these methods:

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Chosen Solution

I suspect the site is trying to display an advertisement in that space but perhaps you're blocking it?

You can use add-ons or custom style rules to modify the appearance or behavior of websites. If you use a popular mail site, there might already be one to do what you want to do. Some places to search:

Note: To apply user styles to pages in Firefox, you can use either of these methods: