Recent answers to Hi, I'd like only certain cookies to be kept after I close Firefox 57. A legacy add on no longer works. How can I do this?https://support.mozilla.org/km/questions/11897892017-11-23T09:25:55-08:00Let the cookies expire when Firefox is closed to make them session cookies instead of using "Clear h2017-11-23T09:25:55-08:00cor-elhttps://support.mozilla.org/km/questions/1189789#answer-1038825<p>Let the cookies expire when Firefox is closed to make them session cookies instead of using "Clear history when Firefox closes" to clear the cookies.
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<ul><li>Options/Preferences -&gt; Privacy &amp; Security -&gt; "Use custom settings for history" -&gt; Cookies: Keep until: "I close Firefox"
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<p>You can create an "Allow" exception to keep specific cookies.
</p><p>In case you use "Clear history when Firefox closes" or otherwise clear history.
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<ul><li>do not clear the Cookies
</li><li>do not clear the Site Preferences
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<ul><li>Options/Preferences -&gt; Privacy &amp; Security -&gt; Firefox will: "Use custom settings for history": [X] "Clear history when Firefox closes" -&gt; Settings
</li><li><a href="https://support.mozilla.org/en-US/kb/delete-browsing-search-download-history-firefox" rel="nofollow">https://support.mozilla.org/en-US/kb/delete-browsing-search-download-history-firefox</a>
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<ul><li>clearing "Site Preferences" clears exceptions for cookies, images, pop-up windows, and software installation and exception for password and other website specific data
</li><li>clearing "Cookies" will remove all selected cookies including cookies with an "Allow" exception you may want to keep
</li></ul>You can not.
See if this helps find anything, doubt it though : https://mozilla.github.io/exten2017-11-22T11:23:57-08:00Pkshadowhttps://support.mozilla.org/km/questions/1189789#answer-1038198<p>You can not.
See if this helps find anything, doubt it though&nbsp;: <a href="https://mozilla.github.io/extension-finder/" rel="nofollow">https://mozilla.github.io/extension-finder/</a>
</p><p>Can always trust the future, it is not here yet but looks promising.
</p><p>Due to security reasons that's too much control&nbsp;: <a href="https://www.howtogeek.com/333230/why-firefox-had-to-kill-your-favorite-extension/" rel="nofollow">https://www.howtogeek.com/333230/why-firefox-had-to-kill-your-favorite-extension/</a>
</p><p>Please let us know if this solved your issue or if need further assistance.
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