This is difference between the default preference of Firefox 111.0 beta 4 and one of 110.0. This diff table is generated with my small script firefox-prefjs-surveyer.

Preference difference
PrefFirefox 111.0Firefox 112.0 beta 4
accessibility.cache.enabled false true
app.normandy.test-prefs.bool undefined false
app.normandy.test-prefs.integer undefined 0
app.normandy.test-prefs.string undefined
app.releaseNotesURL https://www.mozilla.org/%LOCALE%/firefox/%VERSION%/releasenotes/?utm_source=firefox-browser&utm_medium=firefox-browser&utm_campaign=whatsnew https://www.mozilla.org/%LOCALE%/firefox/%VERSION%beta/releasenotes/?utm_source=firefox-browser&utm_medium=firefox-browser&utm_campaign=whatsnew
app.releaseNotesURL.aboutDialog https://www.mozilla.org/%LOCALE%/firefox/%VERSION%/releasenotes/?utm_source=firefox-browser&utm_medium=firefox-desktop&utm_campaign=about-dialog https://www.mozilla.org/%LOCALE%/firefox/%VERSION%beta/releasenotes/?utm_source=firefox-browser&utm_medium=firefox-desktop&utm_campaign=about-dialog
app.update.channel release beta
app.update.url.details https://www.mozilla.org/%LOCALE%/firefox/notes https://www.mozilla.org/%LOCALE%/firefox/beta/notes
app.update.url.manual https://www.mozilla.org/%LOCALE%/firefox/new?reason=manual-update https://www.mozilla.org/%LOCALE%/firefox/beta?reason=manual-update
browser.cache.offline.enable true false
browser.contentblocking.features.strict tp,tpPrivate,cookieBehavior5,cookieBehaviorPBM5,cm,fp,stp,lvl2,lvl2PBM,rp,rpTop,ocsp,qps,qpsPBM tp,tpPrivate,cookieBehavior5,cookieBehaviorPBM5,cm,fp,stp,emailTP,emailTPPrivate,lvl2,lvl2PBM,rp,rpTop,ocsp,qps,qpsPBM
browser.display.normal_lineheight_calc_control 2 undefined
browser.display.show_loading_image_placeholder false undefined
browser.newtabpage.activity-stream.discoverystream.saveToPocketCard.enabled false true
browser.newtabpage.activity-stream.discoverystream.sendToPocket.enabled false true
browser.newtabpage.activity-stream.discoverystream.spoc-topsites-positions undefined 1
browser.newtabpage.activity-stream.telemetry.ut.events false true
browser.opaqueResponseBlocking false true
browser.opaqueResponseBlocking.javascriptValidator false true
browser.promo.cookiebanners.enabled undefined false
browser.translations.useHTML undefined false
browser.urlbar.bestMatch.blockingEnabled false true
browser.urlbar.quickactions.enabled undefined true
browser.urlbar.quickactions.showPrefs undefined true
browser.urlbar.quicksuggest.blockingEnabled false true
browser.urlbar.resultMenu false true
browser.urlbar.resultMenu.keyboardAccessible undefined true
browser.urlbar.shortcuts.quickactions undefined true
browser.urlbar.showSearchTerms.featureGate false true
browser.urlbar.suggest.quickactions undefined true
browser.urlbar.weather.zeroPrefix true undefined
cookiebanners.ui.desktop.enabled false true
docshell.shistory.bfcache.ship_allow_beforeunload_listeners false true
dom.checkedUnsafePtr.dumpStacks.enabled undefined false
dom.document.edit_command.contentReadOnly.enabled true false
dom.document.edit_command.insertBrOnReturn.enabled true false
dom.element.popover.enabled undefined false
dom.fileHandle.enabled false undefined
dom.media.autoplay-policy-detection.enabled false true
dom.memory.foreground_content_processes_have_larger_page_cache undefined true
dom.mozTextStyle.enabled true false
dom.quotaManager.backgroundTask.enabled false true
dom.quotaManager.overrideXFullPathnameUnix undefined true
dom.window_position_size_properties_replaceable.enabled undefined true
dom.workers.pFetch.enabled false true
editor.css.default_length_unit px undefined
editor.hr_element.allow_to_delete_from_following_line true undefined
editor.initialize_element_before_connect true undefined
editor.positioning.offset 0 undefined
editor.resizing.preserve_ratio true undefined
editor.use_div_for_default_newlines true undefined
extensions.InstallTrigger.enabled true false
extensions.webcompat-reporter.enabled false true
fission.enforceBlocklistedPrefsInSubprocesses false true
geo.provider.network.url https://www.googleapis.com/geolocation/v1/geolocate?key=%GOOGLE_LOCATION_SERVICE_API_KEY% https://location.services.mozilla.com/v1/geolocate?key=%MOZILLA_API_KEY%
gfx.max-alloc-size 500000000 2147483647
gfx.webgpu.force-enabled false undefined
gfx.webgpu.ignore-blocklist undefined false
gfx.webrender.max-shared-surface-size undefined 2048
gfx.webrender.scissored-cache-clears.enabled undefined true
gfx.webrender.scissored-cache-clears.force-enabled undefined false
html5.inert.enabled false true
javascript.options.wasm_extended_const undefined true
layout.css.allow-mixed-page-sizes false true
layout.css.exp.enabled undefined false
layout.css.forced-color-adjust.enabled undefined false
layout.css.linear-easing-function.enabled false true
layout.css.motion-path-offset-position.enabled undefined false
layout.css.moz-box-flexbox-emulation.enabled false undefined
layout.css.overflow-overlay.enabled false true
layout.dynamic-reflow-roots.enabled false true
layout.forms.reveal-password-context-menu.enabled false true
media.getusermedia.camera.macavf.enabled false true
media.webrtc.platformencoder.sw_mft false true
network.auth.supress_auth_prompt_for_XFO_failures undefined true
network.cache.frecency_array_check_enabled false true
network.cookie.sameSite.noneRequiresSecure false true
network.early-hints.enabled false true
network.early-hints.preconnect.enabled false true
network.jar.record_failure_reason false true
network.predictor.enable-prefetch false true
network.trr.ohttp.config_uri undefined
network.trr.ohttp.relay_uri undefined
network.trr.use_ohttp undefined false
print.save_as_pdf.use_page_rule_size_as_paper_size.enabled undefined false
privacy.annotate_channels.strict_list.enabled false true
privacy.annotate_channels.strict_list.pbmode.enabled false true
privacy.query_stripping.listService.logLevel undefined Error
privacy.resistFingerprinting.randomization.daily_reset.enabled undefined false
privacy.resistFingerprinting.randomization.daily_reset.private.enabled undefined false
privacy.resistFingerprinting.randomization.enabled undefined false
privacy.trackingprotection.emailtracking.pbmode.enabled undefined true
security.block_fileuri_script_with_wrong_mime false true
security.disallow_non_local_systemprincipal_in_tests undefined false
security.remote_settings.crlite_filters.enabled false true
security.sandbox.plugin.tempDirSuffix undefined
security.ssl3.ecdhe_ecdsa_aes_128_sha true false
security.ssl3.ecdhe_ecdsa_aes_256_sha true false
security.tls.ech.grease_http3 undefined false
security.webauth.u2f true false
security.webauthn.ctap2 false true
services.sync.engine.bookmarks.validation.enabled undefined true
services.sync.engine.passwords.validation.enabled undefined true
svg.nearestAndFarthestViewportElement.enabled true false
toolkit.telemetry.enabled false true
widget.pause-compositor-when-minimized true undefined