I presume "when I return to that site later" means, when Firefox is restarted:

Firefox will remember where you were at for the app-tab in the next session, so that is explained. They are functioning correctly.

You cannot open a link/bookmark to another site in an app-tab, but you can from the location bar or if the link or bookmark involves JavaScript. You can go to the bottom of the pile of your tabs (oldest at bottom, newest at top) by selecting the lowest tab. After doing that recheck to see if there are more lower down as you can only see 15 webpages at a time in a tab drop-down.

There is nothing to stop you from deleting an app-tab either accidentally or on purpose.

What I do is save all my app-tabs into a bookmark folder. Every once in while, daily at least, I wipe out all my app-tabs and do something else or simply restore all of my app-tabs but they are regular tabs. But I have the "Multiple Tab Handler" extension and I select all of the tabs I want as app-tab from the first already selected and extend selection with the Shift key to the last I want and pin those as app-tabs in one shot. A few more I will read like the weather and dismiss them. This way they are nice clean tabs with nothing else in their tab history. (you right-click on the back/forward button to see tab history)

App-tabs are considered part of browsing history so you must save your browsing history for app-tabs to work. Tools > Options > Privacy you must have "Remember my browsing history" and in Settings where check marks mean to clear things you must leave unchecked "Browsing history". Annotated picture:

• http://img232.imageshack.us/img232/4928/clearcachew.png

App-tabs more details -- https://support.mozilla.com/questions/837562

Thanks for that. I see it is working correctly, but that is not want I want. Thanks for the help anyway.

You will either have to open link on from an APP tab in a new tab with a middle-click or use an extension to protect (lock) APP tabs, so their location can't be changed.

• Tab Mix Plus: https://addons.mozilla.org/firefox/addon/tab-mix-plus/

Hello, I just downloaded Firefox 8.0, and I really like the app tabs feature until, I too learned that they don't lock. I had the same expectation (and frustration) as Electron2: that when you right-click on a link to create an app tab, the tab should remain fixed to the page you selected for creating the tab. Otherwise, what is the purpose or convenience of tabs? I don't want to have to make sure I don't change them, or re-set them up.

I downloaded Tab Mix Plus, and made sure "protect" and "lock" were on, but it is not working for me. The app tabs still do not restore to the original link.

Having tabs that can easily change while browsing, or needing to save them to a separate bookmarks folder or re-establish them defeats the purpose of setting them up in the first place. If there's something I'm missing in how to do this, please tell me! I'd love to make use of this feature.

eta: I right-clicked on an app tab and saw the additional "lock" and "protect" options. They still did not lock or save my tab links, and worse: they put two little icons (an exclamation mark and a redline symbol) over the app icon -so I can no longer see what the app tab is for.

the tab should remain fixed to the page you selected for creating the tab. Otherwise, what is the purpose or convenience of tabs (app-tabs)

I was expecting them to be locked as well because the author of "Perma Tabs Mod" ceased work on his extension because app-tabs was going to replace it -- typical of any such replacement it is never done to the specifications already developed over time for the extension, yet authors are mislead about features going into Firefox. Actually I never relied on Perma Tabs Mod to stick around mainly used them while checking links or opening a lot of links or just to save for one session and probably never had more than one at any time.

Anyway what is nice about app-tabs.

1. I open them all up at once from a folder in the order I want. Right-click on the folder and then "Open all in tabs".
2. The first tab of those is already selected, so I use Shift+click on the last tab added, and with the help of "Multiple Tabs Plus" all in the group are selected.
3. Then right click on any tab and choose "Pin tab" and all of the selected tabs become app-tabs
4. Now you see the advantage, the tabs all have a specific location ad only take up the width of the favicon (with a little help of a style) and all app-tabs are bunched up together at the left side of the tabs bar..

I doubt that that takes 15 seconds. FYI I have about 18 app-tabs, and generally all tabs after them will be all removed at the same time when they get over 40 unless I'm reading blogs, in which case my methods change.

You can drag a tab between two app-tabs and it becomes an app-tab. Dragging a link between two app-tabs makes it a regular tab placed immediately to the right of all the app-tabs.

New tabs are opened at the far right (configuration option).