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how can i get my firefox version 24 to list 100 lines every time i open the application?

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  • 1 has this problem
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  • Last reply by cor-el

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Hi - I'm using Firefox v. 24, which I believe is the latest version and since I use automatic updates, I believe that my system is up to date. The problem that I'm having on my Windows 8.1 Preview system (Thinkpad X1 Carbon Touch) and I can't get FireFox to show 100 Gmail lines as a setting that sticks. Every day I try to fix it, but at the next boot-up, it just goes back to 20. Very frustrating!! I haven't had this problem before installing v.24. Any other questions, please don't hesitate to contact me. Thanks!!! SS

Modified by scootah68

Chosen solution

Such a detail is stored in a (PREF) cookie as posted above.

You can create a cookie 'allow' exception to keep cookies from the Google domain, especially in case of secure websites and when cookies expire when Firefox is closed.

  • Tools > Options > Privacy > Cookies: Exceptions

In case you are using "Clear history when Firefox closes":

  • do not clear the Cookies
  • do not clear the Site Preferences

Note that clearing "Site Preferences" clears all exceptions for cookies, images, pop-up windows, software installation, and passwords.

Clearing cookies will remove all specified (selected) cookies including cookies with an allow exception that you want to keep.


If clearing cookies doesn't work then it is possible that the cookies.sqlite file that stores the cookies is corrupted.

Rename (or delete) cookies.sqlite (cookies.sqlite.old) and delete other present cookie files like cookies.sqlite-journal in the Firefox profile folder in case the file cookies.sqlite got corrupted.

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Hi Scott, it's likely Google stores this preference in a cookie.

Does the problem occur if you exit Firefox and restart it immediately, or only when you shut down and restart Windows? It could be that some process is clearing cookies at one or both of those times.

If you lose your cookies every time Firefox exits, check the setting described in this article: Delete browsing, search and download history on Firefox (section entitled "How do I make Firefox clear my history automatically?").

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More generally, when you have a problem with one particular site, a good "first thing to try" is clearing your Firefox cache and deleting your saved cookies for the site.

(1) Bypass Firefox's Cache

Use Ctrl+Shift+r to reload the page fresh from the server.

Alternately, you also can clear Firefox's cache completely using:

orange Firefox button (or Tools menu) > Options > Advanced

On the Network mini-tab > Cached Web Content : "Clear Now"

If you have a large hard drive, this might take a few minutes.

(2) Remove the site's cookies (save any pending work first). While viewing a page on the site, try either:

  • right-click and choose View Page Info > Security > "View Cookies"
  • Alt+t (open the classic Tools menu) > Page Info > Security > "View Cookies"

In the dialog that opens, you can remove the site's cookies individually.

Then try reloading the page. Does that help?

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Chosen Solution

Such a detail is stored in a (PREF) cookie as posted above.

You can create a cookie 'allow' exception to keep cookies from the Google domain, especially in case of secure websites and when cookies expire when Firefox is closed.

  • Tools > Options > Privacy > Cookies: Exceptions

In case you are using "Clear history when Firefox closes":

  • do not clear the Cookies
  • do not clear the Site Preferences

Note that clearing "Site Preferences" clears all exceptions for cookies, images, pop-up windows, software installation, and passwords.

Clearing cookies will remove all specified (selected) cookies including cookies with an allow exception that you want to keep.


If clearing cookies doesn't work then it is possible that the cookies.sqlite file that stores the cookies is corrupted.

Rename (or delete) cookies.sqlite (cookies.sqlite.old) and delete other present cookie files like cookies.sqlite-journal in the Firefox profile folder in case the file cookies.sqlite got corrupted.