arkenfox/user.js

[Q] Can websites track my bookmarks' URLs, favicons, names, etc.? (5010 / 5006 / 0605) [A: no]

Closed this issue · 2 comments

/* 5006: disable favicons in history and bookmarks
 * [NOTE] Stored as data blobs in favicons.sqlite, these don't reveal anything that your
 * actual history (and bookmarks) already do. Your history is more detailed, so
 * control that instead; e.g. disable history, clear history on exit, use PB mode
 * [NOTE] favicons.sqlite is sanitized on Firefox close ***/
   // user_pref("browser.chrome.site_icons", false);

/* 0605: disable mousedown speculative connections on bookmarks and history [FF98+] ***/
user_pref("browser.places.speculativeConnect.enabled", false);

/* 5010: disable location bar suggestion types
 * [SETTING] Search>Address Bar>When using the address bar, suggest ***/
   // user_pref("browser.urlbar.suggest.history", false);
   // user_pref("browser.urlbar.suggest.bookmark", false);
   // user_pref("browser.urlbar.suggest.openpage", false);
   // user_pref("browser.urlbar.suggest.topsites", false); // [FF78+]

Regarding 5010, 5006, and 0605, I'm confused about the risks of using bookmarks (with their favicons, and url suggestions).

Can websites access my bookmarks' information somehow? (I have more than 1,000 sorted into many directories.)

web sites .. not really see

/* 0820: disable coloring of visited links
 * [SETUP-HARDEN] Bulk rapid history sniffing was mitigated in 2010 [1][2]. Slower and more expensive
 * redraw timing attacks were largely mitigated in FF77+ [3]. Using RFP (4501) further hampers timing
 * attacks. Don't forget clearing history on exit (2811). However, social engineering [2#limits][4][5]
 * and advanced targeted timing attacks could still produce usable results
 * [1] https://developer.mozilla.org/docs/Web/CSS/Privacy_and_the_:visited_selector
 * [2] https://dbaron.org/mozilla/visited-privacy
 * [3] https://bugzilla.mozilla.org/1632765
 * [4] https://earthlng.github.io/testpages/visited_links.html (see github wiki APPENDIX A on how to use)
 * [5] https://lcamtuf.blogspot.com/2016/08/css-mix-blend-mode-is-bad-for-keeping.html ***/
   // user_pref("layout.css.visited_links_enabled", false);

5006,5010

user.js/user.js

Line 866 in f906f7f

Disk avoidance, application data isolation, eyeballs...

Can websites access my bookmarks' information somehow? (I have more than 1,000 sorted into many directories.)

Not without exploits.