Recent answers to FF closes tab without askinghttps://support.mozilla.org/en-US/questions/11117462016-02-27T05:35:39-08:00jscher, that did it! Thank you. I wonder how that got changed to True recently.
cor-el, thank you fo2016-02-27T05:35:39-08:00donielhttps://support.mozilla.org/en-US/questions/1111746#answer-849686<p>jscher, that did it! Thank you. I wonder how that got changed to True recently.
</p><p>cor-el, thank you for your suggestions. To me, it's not important that the solution lay elsewhere. What's important is that you were there, trying to help me.
</p>Here's one more preference... Normally, pages cannot close themselves unless they were opened with a2016-02-26T06:06:56-08:00jscher2000https://support.mozilla.org/en-US/questions/1111746#answer-849281<p>Here's one more preference... Normally, pages cannot close themselves unless they were opened with a script. You can check that this protection was not disabled:
</p><p>(1) In a new tab, type or paste <strong>about:config</strong> in the address bar and press Enter/Return. Click the button promising to be careful.
</p><p>(2) In the search box above the list, type or paste <strong>dom.</strong> and pause while the list is filtered
</p><p>(3) If the <strong>dom.allow_scripts_to_close_windows</strong> preference is bolded and "user set" to true, double-click it to restore the default value of false
</p>It is possible that the login page is supposed to open in a new window.
If you would open such a pag2016-02-26T05:57:25-08:00cor-elhttps://support.mozilla.org/en-US/questions/1111746#answer-849275<p>It is possible that the login page is supposed to open in a new window.
If you would open such a page directly instead of opening the page from a link then a script can try to close that tab and instead closes the window.
</p><p>You can possibly check the browser.link.open_newwindow prefs on the <b>about:config</b> page to see if they have the default and if not then rest them via the right-click context menu to the default value.
</p>
<ul><li><a href="http://kb.mozillazine.org/browser.link.open_newwindow" rel="nofollow">http://kb.mozillazine.org/browser.link.open_newwindow</a>
</li><li>1: current tab; 2:new window; 3:new tab;
</li></ul>
<p>For links opened via JavaScript you can look at this pref:
</p>
<ul><li><a href="http://kb.mozillazine.org/browser.link.open_newwindow.restriction" rel="nofollow">http://kb.mozillazine.org/browser.link.open_newwindow.restriction</a>
</li></ul>
<p>You can open the <b>about:config</b> page via the location/address bar.
You can accept the warning and click "I'll be careful" to continue.
</p>
<ul><li><a href="http://kb.mozillazine.org/about:config" rel="nofollow">http://kb.mozillazine.org/about:config</a>
</li></ul>cor-el, thank you for your suggestions.
The bookmark is fine. As I wrote, I can get to the login pag2016-02-25T19:43:16-08:00donielhttps://support.mozilla.org/en-US/questions/1111746#answer-849075<p>cor-el, thank you for your suggestions.
</p><p>The bookmark is fine. As I wrote, I can get to the login page. It's after I enter my username and p/w and click on Log In that the tab closes.
</p><p>Toggling the setting to False didn't help.
</p><p><br>
FredMcD, from the above, you'll understand that the address won't help you, since you won't be able to log in.
</p>What is the web address?
2016-02-25T09:24:35-08:00fredmcd-hotmailhttps://support.mozilla.org/en-US/questions/1111746#answer-848975<p>What is the web address?
</p>Are you using a bookmark or are you starting with the main (home) page of this website?
If you use a2016-02-25T05:42:17-08:00cor-elhttps://support.mozilla.org/en-US/questions/1111746#answer-848867<p>Are you using a bookmark or are you starting with the main (home) page of this website?
</p><p>If you use a bookmark then try to navigate to that page starting with the main page in case this bookmark or link is currently broken or otherwise not working properly.
</p>
<hr>
<p>You can set <b>browser.tabs.closeWindowWithLastTab</b> to false on the about:config page to prevent closing the last tab from closing that window and make a close button appear if only one tab is open.
</p><p>You can open the <b>about:config</b> page via the location/address bar.
You can accept the warning and click "I'll be careful" to continue.
</p>
<ul><li><a href="http://kb.mozillazine.org/about:config" rel="nofollow">http://kb.mozillazine.org/about:config</a>
</li></ul>