about:config
toolkit.telemetry.archive.enabled = false
toolkit.telemetry.enabled = false
toolkit.telemetry.unified = false
datareporting.healthreport.uploadEnabled = false
datareporting.policy.dataSubmissionEnabled = false

    dom.storage.enabled FALSE - Disable "client-side session and persistent storage" cookies (bad for 8ch - the replies hypelinks next to the post number disappears).
    geo.enabled FALSE - Disable location data.
    general.useragent.override - Create as a String value and insert your own useragent.
    Dynamically updated list of common user agents.
    network.dns.disablePrefetch TRUE - Stop Firefox looking up IP addresses of links of the page you haven't/aren't going to.
    network.http.pipelining TRUE - Possible speedup for some servers (send multiple files through one connection).
    network.http.pipelining.max-optimistic-requests 8 - Total number of pipelines.
    network.http.pipelining.ssl TRUE - Pipeline with HTTPS sites.
    network.http.proxy.pipelining TRUE - Pipleline through proxy connections.
    network.http.sendRefererHeader - 0 = never (bad for 8ch), 1 = domain only, 2 = full url (default).
    network.prefetch-next FALSE - Don't download pages linked to the current page unless we click the link.
    dom.event.clipboardevents.enabled FALSE - Don't allow webpages to mess with the clipboard.
    dom.disable_window_move_resize TRUE - Don't allow webpages to move or resize the browser window.
    dom.ipc.plugins.flash.subprocess.crashreporter.enabled FALSE - Don't report flash plugin crashes.
    media.autoplay.enabled FALSE - Don't autoplay media.
    media.peerconnection.enabled FALSE - Important for VPN users. Don't allow p2p downloading of media.
    pdfjs.disabled TRUE - Don't run javascript within the builtin pdf viewer.
    reader.parse-on-load.enabled FALSE - disable "reader view".
    browser.pocket.enabled (or extensions.pocket.enabled) FALSE - disable pocket.
    network.http.speculative-parallel-limit 0 - don't create connections to links you only hover over.
    dom.push.connection.enabled FALSE - Disable push notifications (FF44+).
    dom.push.enabled FALSE - (as above).
    dom.webnotifications.enabled FALSE - (as above).
    dom.webnotifications.serviceworker.enabled FALSE - (as above).
    loop.enabled FALSE - Disable loop/conversation calling features.
    browser.urlbar.unifiedcomplete FALSE - Disables the "Search With" popup when typing into the location bar.
    media.ffmpeg.enabled FALSE (linux only as of FF44) - Disable mp4 playback through ffmpeg, to stop ffmpeg bugs breaking your firefox.
    media.eme.apiVisible FALSE - Stops pages from using a JavaScript library for DRM (Digital Rights Management/
    media.eme.enabled FALSE