This is difference between the default preference of Firefox 114.0 beta 3 and one of 113.0.1. This diff table is generated with my small script firefox-prefjs-surveyer.

Preference difference
PrefFirefox 114.0.1Firefox 114.0 beta 3
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
apz.rounded_external_scroll_offset undefined false
browser.cache.offline.enable true false
browser.device-migration.help-menu.hidden undefined false
browser.newtabpage.activity-stream.discoverystream.endpoints https://getpocket.cdn.mozilla.net/,https://spocs.getpocket.com/ https://getpocket.cdn.mozilla.net/,https://firefox-api-proxy.cdn.mozilla.net/,https://spocs.getpocket.com/
browser.newtabpage.activity-stream.discoverystream.onboardingExperience.dismissed undefined false
browser.newtabpage.activity-stream.discoverystream.onboardingExperience.enabled undefined true
browser.newtabpage.activity-stream.discoverystream.region-bff-config undefined FR,IT,ES
browser.newtabpage.activity-stream.discoverystream.region-stories-block FR
browser.newtabpage.activity-stream.discoverystream.region-stories-config US,DE,CA,GB,IE,CH,AT,BE,IN US,DE,CA,GB,IE,CH,AT,BE,IN,FR,IT,ES
browser.newtabpage.activity-stream.telemetry.ut.events false true
browser.opaqueResponseBlocking false true
browser.opaqueResponseBlocking.javascriptValidator false true
browser.urlbar.quickactions.enabled undefined true
browser.urlbar.quickactions.showPrefs undefined true
browser.urlbar.searchEngagementTelemetry.enabled false undefined
browser.urlbar.shortcuts.quickactions undefined true
browser.urlbar.showSearchTerms.featureGate false true
browser.urlbar.suggest.quickactions undefined true
browser.urlbar.weather.ignoreVPN undefined false
browser.urlbar.weather.minKeywordLength undefined 0
cookiebanners.ui.desktop.enabled false true
docshell.shistory.bfcache.ship_allow_beforeunload_listeners false true
dom.document.edit_command.contentReadOnly.enabled true false
dom.document.edit_command.insertBrOnReturn.enabled true false
dom.enable_largest_contentful_paint undefined false
dom.media.mozPreservesPitch.enabled true false
dom.mozImageSmoothingEnabled.enabled false undefined
dom.workers.modules.enabled false true
editor.join_split_direction.compatible_with_the_other_browsers false true
extensions.InstallTrigger.enabled true false
extensions.browser_style_mv3.same_as_mv2 undefined true
extensions.browser_style_mv3.supported undefined true
extensions.formautofill.heuristics.enabled true undefined
extensions.formautofill.section.enabled true undefined
extensions.webcompat-reporter.enabled false true
fission.disableSessionHistoryInParent undefined false
fission.enforceBlocklistedPrefsInSubprocesses false true
fission.sessionHistoryInParent false undefined
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.webrender.super-resolution.nvidia undefined false
gfx.webrender.svg-shapes undefined true
javascript.options.jithints undefined true
layout.css.allow-mixed-page-sizes false true
layout.css.cascade-layers.enabled true undefined
layout.css.import-supports.enabled undefined false
layout.css.inverted-colors.enabled undefined false
layout.css.nan-inf.enabled false true
layout.css.text-transform.uppercase-eszett.enabled undefined false
layout.dynamic-reflow-roots.enabled false true
media.getusermedia.camera.macavf.enabled false true
media.gmp.decoder.decode_batch undefined false
media.gmp.decoder.multithreaded undefined false
media.peerconnection.ice.proxy_only_if_pbmode undefined false
media.videocontrols.picture-in-picture.urlbar-button.enabled false true
media.webrtc.platformencoder.sw_mft false true
mousewheel.scroll_series_timeout undefined 80
network.allow_redirect_to_data undefined false
network.cache.frecency_array_check_enabled false true
network.cookie.fixup_on_db_load undefined 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_ui.show_fallback_warning_option undefined false
network.webtransport.datagrams.enabled false true
network.webtransport.enabled false true
places.frecency.origins.alternative.featureGate undefined false
privacy.annotate_channels.strict_list.enabled false true
privacy.clearsitedata.cache.enabled false undefined
privacy.fingerprintingProtection undefined false
privacy.fingerprintingProtection.overrides undefined
privacy.fingerprintingProtection.pbmode undefined false
privacy.resistFingerprinting.pbmode undefined false
privacy.resistFingerprintingLite false undefined
privacy.resistFingerprintingLite.overrides undefined
privacy.trackingprotection.origin_telemetry.enabled false undefined
security.block_fileuri_script_with_wrong_mime false true
security.disallow_non_local_systemprincipal_in_tests undefined false
security.osclientcerts.assume_rsa_pss_support undefined true
security.remote_settings.crlite_filters.enabled false true
security.ssl3.ecdhe_ecdsa_aes_128_sha true false
security.ssl3.ecdhe_ecdsa_aes_256_sha true false
security.webauth.u2f false undefined
security.webauthn.ctap2 false true
security.webauthn.webauthn_enable_android_fido2.residentkey undefined false
services.sync.engine.bookmarks.validation.enabled undefined true
services.sync.engine.passwords.validation.enabled undefined true
signon.firefoxRelay.manage_url undefined https://relay.firefox.com
svg.nearestAndFarthestViewportElement.enabled true false
svg.use-element.recursive-clone-limit undefined 8
svg.use-element.recursive-clone-limit.enabled undefined 2
telemetry.origin_telemetry_test_mode.enabled false undefined
threads.lower_mainthread_priority_in_background.enabled undefined false
timer.maximum_firing_delay_tolerance_ms undefined 0.0
timer.minimum_firing_delay_tolerance_ms undefined 1.0
toolkit.telemetry.enabled false true
webgl.out-of-process.async-present.force-sync true false
widget.gtk.non-native-menu-styling undefined true
widget.pause-compositor-when-minimized true undefined
widget.wayland.vsync.keep-firing-at-idle undefined false
widget.windows.sync-clipboard-flush 2 undefined