# BIG PROBLEM WITH DEVELOPMENT TOOLS ON FIREFOX  

**URL:** https://discourse.mozilla.org/t/big-problem-with-development-tools-on-firefox/120362
**Category:** Developer Tools
**Created:** [June 16, 2023, 2:01pm UTC](https://discourse.mozilla.org/t/big-problem-with-development-tools-on-firefox/120362 "2023-06-16T14:01:54Z")
**Posts on this page:** 3
**Page:** 1

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### Author: ![Betty](https://sea1.discourse-cdn.com/flex001/user_avatar/discourse.mozilla.org/betty/32/62889_2.png) [@Betty](https://discourse.mozilla.org/u/Betty)
#### Post date: [June 16, 2023, 2:01pm UTC](https://discourse.mozilla.org/t/big-problem-with-development-tools-on-firefox/120362/1 "2023-06-16T14:01:54Z")

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Hello,

I’m a Firefox user and I’ve been having a big problem every time I go on the Internet for a few days now:

Your Development Tool (in Tool/Browser Tool) opens at the bottom of the page and prevents me from typing properly. No matter how hard I try to close it as soon as I start writing (here on Deepl to translate), it keeps opening and opening windows, and I can’t get out of it.

Can you help me urgently, as I’m going to have to abandon it in these conditions.

Thanks a lot! 😀

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### Author: ![Nicolas\_Chevobbe](https://sea1.discourse-cdn.com/flex001/user_avatar/discourse.mozilla.org/nicolas_chevobbe/32/28203_2.png) [@Nicolas\_Chevobbe](https://discourse.mozilla.org/u/Nicolas_Chevobbe)
#### Post date: [June 16, 2023, 2:21pm UTC](https://discourse.mozilla.org/t/big-problem-with-development-tools-on-firefox/120362/2 "2023-06-16T14:21:14Z")

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Hello Betty,

Can you check if the opening of the DevTools happen when you hit a specific key?  
I’m wondering if your keyboard might have an issue with its Ctrl/Cmd key which would trigger one of the keyboard shortcut we offer to open devtools (see [https://firefox-source-docs.mozilla.org/devtools-user/keyboard\_shortcuts/index.html#keyboard-shortcuts-opening-and-closing-tools](https://firefox-source-docs.mozilla.org/devtools-user/keyboard_shortcuts/index.html#keyboard-shortcuts-opening-and-closing-tools))

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### Author: ![Nicolas\_Chevobbe](https://sea1.discourse-cdn.com/flex001/user_avatar/discourse.mozilla.org/nicolas_chevobbe/32/28203_2.png) [@Nicolas\_Chevobbe](https://discourse.mozilla.org/u/Nicolas_Chevobbe)
#### Post date: [June 16, 2023, 3:04pm UTC](https://discourse.mozilla.org/t/big-problem-with-development-tools-on-firefox/120362/3 "2023-06-16T15:04:21Z")

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if you manage to identify the key that triggers the opening, could you open [https://w3c.github.io/uievents/tools/key-event-viewer.html](https://w3c.github.io/uievents/tools/key-event-viewer.html) and type the key, and send a screenshot of the page please?