HTTP/2 301
content-length: 162
content-type: text/html
date: Tue, 14 Oct 2025 09:46:54 GMT
location: https://developer.mozilla.org/en-US/docs/Mozilla/Add-ons/WebExtensions/API/tabs/PageSettings
server: nginx
strict-transport-security: max-age=60; includeSubDomains
via: 1.1 google
alt-svc: h3=":443"; ma=2592000,h3-29=":443"; ma=2592000
HTTP/2 200
content-type: text/html
x-guploader-uploadid: AAwnv3Lu07G4VEPCWGNCVhstv2EHOdRP3IDP3yUDpdOdtPHkJi5mDINOMWNwm95n4j-xLGnx
cache-control: public, max-age=3600
expires: Tue, 14 Oct 2025 10:46:55 GMT
last-modified: Tue, 14 Oct 2025 01:04:34 GMT
etag: W/"24247bb825f71d120571d7d232dcde10"
x-goog-generation: 1760403874382973
x-goog-metageneration: 1
x-goog-stored-content-encoding: identity
x-goog-stored-content-length: 157538
x-goog-meta-goog-reserved-file-mtime: 1760402655
x-goog-hash: crc32c=9Fk8bg==, md5=JCR7uCX3HRIFcdfSMtzeEA==
x-goog-storage-class: STANDARD
accept-ranges: none
alt-svc: h3=":443"; ma=2592000,h3-29=":443"; ma=2592000
alt-svc: clear
referrer-policy: strict-origin-when-cross-origin
x-content-type-options: nosniff
strict-transport-security: max-age=63072000
content-security-policy: default-src 'self'; script-src 'report-sample' 'self' 'wasm-unsafe-eval' https://www.google-analytics.com/analytics.js https://www.googletagmanager.com/gtag/js assets.codepen.io production-assets.codepen.io https://js.stripe.com 'sha256-XNBp89FG76amD8BqrJzyflxOF9PaWPqPqvJfKZPCv7M=' 'sha256-YCNoU9DNiinACbd8n6UPyB/8vj0kXvhkOni9/06SuYw=' 'sha256-PZjP7OR6mBEtnvXIZfCZ5PuOlxoDF1LDZL8aj8c42rw='; script-src-elem 'report-sample' 'self' 'wasm-unsafe-eval' https://www.google-analytics.com/analytics.js https://www.googletagmanager.com/gtag/js assets.codepen.io production-assets.codepen.io https://js.stripe.com 'sha256-XNBp89FG76amD8BqrJzyflxOF9PaWPqPqvJfKZPCv7M=' 'sha256-YCNoU9DNiinACbd8n6UPyB/8vj0kXvhkOni9/06SuYw=' 'sha256-PZjP7OR6mBEtnvXIZfCZ5PuOlxoDF1LDZL8aj8c42rw='; style-src 'report-sample' 'self' 'unsafe-inline'; object-src 'none'; base-uri 'self'; connect-src 'self' developer.allizom.org bcd.developer.allizom.org bcd.developer.mozilla.org updates.developer.allizom.org updates.developer.mozilla.org https://*.google-analytics.com https://*.analytics.google.com https://*.googletagmanager.com https://incoming.telemetry.mozilla.org https://observatory-api.mdn.allizom.net https://observatory-api.mdn.mozilla.net https://api.github.com/search/issues stats.g.doubleclick.net https://api.stripe.com; font-src 'self'; frame-src 'self' interactive-examples.mdn.mozilla.net interactive-examples.mdn.allizom.net mdn.github.io live-samples.mdn.mozilla.net live-samples.mdn.allizom.net *.mdnplay.dev *.mdnyalp.dev *.play.test.mdn.allizom.net https://v2.scrimba.com https://scrimba.com jsfiddle.net www.youtube-nocookie.com codepen.io survey.alchemer.com https://js.stripe.com; img-src 'self' data: *.githubusercontent.com *.googleusercontent.com *.gravatar.com mozillausercontent.com firefoxusercontent.com profile.stage.mozaws.net profile.accounts.firefox.com developer.mozilla.org mdn.dev interactive-examples.mdn.mozilla.net interactive-examples.mdn.allizom.net wikipedia.org upload.wikimedia.org https://mdn.github.io/shared-assets/ https://mdn.dev/ https://*.google-analytics.com https://*.googletagmanager.com www.gstatic.com; manifest-src 'self'; media-src 'self' archive.org videos.cdn.mozilla.net https://mdn.github.io/shared-assets/; child-src 'self'; worker-src 'self';
x-frame-options: DENY
origin-trial: AxVILwizhbMjxFeHOn1P3R8niO1RJY/smaK4B4d1rLzc1gTaxtXMSaTi+FoigYgCw40uFRDwFcEAeqDR+vVLOW4AAABfeyJvcmlnaW4iOiJodHRwczovL2RldmVsb3Blci5tb3ppbGxhLm9yZyIsImZlYXR1cmUiOiJQcml2YXRlQXR0cmlidXRpb25WMiIsImV4cGlyeSI6MTc0MjA3OTYwMH0=
x-cloud-trace-context: dc754b4b177949fd66413e7f6d26992c
date: Tue, 14 Oct 2025 09:46:56 GMT
server: Google Frontend
via: 1.1 google
vary: Accept-Encoding
content-encoding: gzip
x-cache: miss
tabs.PageSettings - Mozilla | MDN
Values of this type are objects. They contain the following properties:
edgeBottom
Optional
number
. The spacing between the bottom of the footers and the bottom edge of the paper (inches). Default: 0.
edgeLeft
Optional
number
. The spacing between the left header/footer and the left edge of the paper (inches). Default: 0.
edgeRight
Optional
number
. The spacing between the right header/footer and the left edge of the paper (inches). Default: 0.
edgeTop
Optional
number
. The spacing between the top of the headers and the top edge of the paper (inches). Default: 0
string
. The text for the page's center footer. Default: ''.
string
. The text for the page's left footer. Default: '&PT'.
string
. The text for the page's right footer. Default: '&D'.
string
. The text for the page's center header. Default: ''.
string
. The text for the page's left header. Default: '&T'.
string
. The text for the page's right header. Default: '&U'.
marginBottom
Optional
number
. The margin between the page content and the bottom edge of the paper (inches). Default: 0.5.
marginLeft
Optional
number
. The margin between the page content and the left edge of the paper (inches). Default: 0.5.
marginRight
Optional
number
. The margin between the page content and the right edge of the paper (inches). Default: 0.5.
marginTop
Optional
number
. The margin between the page content and the top edge of the paper (inches). Default: 0.5.
orientation
Optional
integer
. Page orientation: 0 means "portrait", 1 means "landscape". Default: 0.
paperHeight
Optional
number
. The paper height in paper size units. Default: 11.0.
paperSizeUnit
Optional
integer
. The paper size unit: 0 = inches, 1 = millimeters. Default: 0.
paperWidth
Optional
number
. The paper width in paper size units. Default: 8.5.
scaling
Optional
number
. Page content scaling factor. 1 means 100% or normal size. Default: 1.
showBackgroundColors
Optional
boolean
. Whether the page background colors should be shown. Default: false.
showBackgroundImages
Optional
boolean
. Whether the page background images should be shown. Default: false.
shrinkToFit
Optional
boolean
. Whether the page content should shrink to fit the page width (overrides scaling). Default: true.
toFileName
Optional
string
. The name of the file the PDF is saved in, with or without the .pdf
extension.