hi, i don't have this option available on windows either. are you using a particular addon that might add this option?

to address some other points of your post: - if you'd like to dismiss a firefox "doorhanger" panel (like the remember password one) you can simply click/tap/continue anywhere else on the page and it will be gone. you can reopen it by clicking on its icon next to the address bar - addons in firefox are very powerful and can modify/replace any part of the internals of the browser. for that to work properly, in some cases a restart of the browser is necessary after installation - the majority of newer addons will be restartless though - to hide the titlebar on gnome i think you might need an addon as well - https://addons.mozilla.org/firefox/addon/htitle/ (with a restart :( ) - mozilla did some experimentation about automatic page translation in some markets. this is quite costly to do if you don't have an in-house translation engine and it wasn't a feature that popular in those tests that it was further pursued

Thanks, Philip. I appreciate your response.

This is what I see in the menu and I don't have any addons installed.

Firefox version - 45.0a2 (2015-12-22)

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> - if you'd like to dismiss a firefox "doorhanger" panel (like the remember password one) you can simply click/tap/continue anywhere else on the page and it will be gone.

I bet many know that. But, doing that will lose the default focus from the corresponding component in that page. I will have to navigate and click on the same component once again to restore my work. Hitting a tab will be messed too, as the focus is now shifted. Definitely not a good UX, IMO and it needs some improvement (to save 2 clicks and 2 seconds).

> in some cases a restart of the browser is necessary after installation This is okay. Awaiting for the new addons architecture in place as per - https://blog.mozilla.org/addons/2015/08/21/the-future-of-developing-firefox-add-ons/

> to hide the titlebar on gnome i think you might need an addon as well That's a good news. But umm, don't you think this should be in place by default?!

> mozilla did some experimentation about automatic page translation in some markets. Totally get it. I can live with the 'translator' addon that does this job(opens in a new tab :( ).

Do you have Tab Mix Plus as there are a lot of context menu items that aren't there by default like Duplicate tab and Lock/Protect Tab?

There is a Options/Preferences window in TMP to select what items appear in the Tab bar context menu.

This is the problem. I have the default browser with no add-ons installed (as you see in the screenshot behind the popup) and it differs significantly with the Windows version and Linux version.

You can start Firefox in Safe Mode o both computers and check if the context menu still differ.

Start Firefox in Safe Mode to see if that has effect.

• Windows: hold down the Shift key while starting Firefox
• Mac: hold down the Options key while starting Firefox

There are various categories in the left column of the Add-ons page. Click Extensions to see add-ons like Tab Mix Plus.