Bookmarks are exported automatically every day in Firefox w/o addons.

Besides, sessions are quite stable. I never had any session loss.

Firefox does do automatic bookmarks backups daily when they are changed or the day that they are changed, but I wouldn't call that an export. Exporting of Bookmarks is in a bookmarks.html file, where the backups are in the json / jsonmz4 format. An HTML file export would be "imported"; where a json / jsonmz4 file would be "restored" to recover or restore a users bookmarks. And HTML appends any existing bookmarks, where json / jsonmz4 will overwrite any existing bookmarks.

https://support.mozilla.org/en-US/kb/restore-bookmarks-from-backup-or-move-them#w_manual-backup

As far as Quantum alternatives to pre-57 Legacy extensions like that, I am unaware of one.

There is an old setting for Firefox to export bookmarks to an HTML-format file at shutdown. But that's much less predictable than daily:

http://kb.mozillazine.org/Browser.bookmarks.autoExportHTML

TyDraniu said

Bookmarks are exported automatically every day in Firefox w/o addons. Besides, sessions are quite stable. I never had any session loss.

Is there any way to increase the frequency of Firefox doing that?

the-edmeister said

As far as Quantum alternatives to pre-57 Legacy extensions like that, I am unaware of one.

Hmm, okay.

jscher2000 said

There is an old setting for Firefox to export bookmarks to an HTML-format file at shutdown. But that's much less predictable than daily: http://kb.mozillazine.org/Browser.bookmarks.autoExportHTML

I don't shutdown/restart Firefox very often, usually only when Windows requires a reboot due to updates, other wise I always put the system in hibernate with everything running. So I'm looking for a way to regularly export/backup bookmarks while Firefox is running. More often than once a day I mean.

See also:

• https://dxr.mozilla.org/mozilla-release/source/browser/components/BrowserGlue.jsm#696

cor-el said

See also:

• https://dxr.mozilla.org/mozilla-release/source/browser/components/BrowserGlue.jsm#696

... if that piece of code is a clue to look for an option, I can't find anything related to that code in about:config. Unless you're hinting to change the code and recompile Firefox myself, using a different interval set in the code I mean.