As I mentioned, using numbers coulf complicated since keyboards are also quite complicated. I mentioned that devtools seems to be using an accesskey with the number 1 using the virtual key code ([VK_1](https://searchfox.org/mozilla-central/rev/044802a2108a5163bd5288ea18eb6a88234d45f0/devtools/startup/locales/en-US/key-shortcuts.ftl#34)), but I'm not sure how well supported that is in the greater Firefox. I know we have the CMD + number shortcut to select tabs, so it could be possible. The method of using Alt + [Symbol] will not work however. Using French as an example, there's multiple layouts possible so using alt + & likely won't work because it may be a different location depending on. the keyboard layout: [French (Legacy, AZERTY) Keyboard](https://learn.microsoft.com/en-us/globalization/keyboards/kbdfr) [French (Standard, AZERTY) Keyboard](https://learn.microsoft.com/en-us/globalization/keyboards/kbdfrna) [French (Standard, BÉPO) Keyboard](https://learn.microsoft.com/en-us/globalization/keyboards/kbdfrnb) In the French (Standard, BÉPO) Keyboard for example & is hidden behind the AltGr modifier.
Bug 1897411 Comment 12 Edit History
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As I mentioned, using numbers could be complicated since keyboards are also quite complicated. I mentioned that devtools seems to be using an accesskey with the number 1 using the virtual key code ([VK_1](https://searchfox.org/mozilla-central/rev/044802a2108a5163bd5288ea18eb6a88234d45f0/devtools/startup/locales/en-US/key-shortcuts.ftl#34)), but I'm not sure how well supported that is in the greater Firefox. I know we have the CMD + number shortcut to select tabs, so it could be possible. The method of using Alt + [Symbol] will not work however. Using French as an example, there's multiple layouts possible so using alt + & likely won't work because it may be a different location depending on. the keyboard layout: [French (Legacy, AZERTY) Keyboard](https://learn.microsoft.com/en-us/globalization/keyboards/kbdfr) [French (Standard, AZERTY) Keyboard](https://learn.microsoft.com/en-us/globalization/keyboards/kbdfrna) [French (Standard, BÉPO) Keyboard](https://learn.microsoft.com/en-us/globalization/keyboards/kbdfrnb) In the French (Standard, BÉPO) Keyboard for example & is hidden behind the AltGr modifier.