Based on discussion with UX and a11y team, the plan is to treat Fx View as a button in terms of how you can interact with it via keyboard. Users will be able to tab to/from the button regardless of where it's located in the browser.
Bug 1793088 Comment 1 Edit History
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Based on discussion with UX and a11y team, the plan is to treat Fx View as a button in terms of how you can interact with it via keyboard. Users will be able to tab to/from the button (as opposed to using arrow keys like when cycling through tabs) regardless of where it's located in the browser.