#15325 Ignoring "resize" events during printing (issue 15324)
#15327 Correctly mimic the proper event-format in AnnotationElement._setDefaultPropertiesFromJS (bug 1785218)
#15329 [api-minor][Annotations] charLimit === 0 means unlimited (bug 1782564)
#15338 Update packages and translations
#15332 [api-minor] Add the Babel targets-option to avoid transpiling code for unsupported browsers
#15335 Ensure that we don't try to re-open, or update the password-callback, when the password dialog is already open
#15348 [editor] Change the focus-outline to blue (bug 1787296)
#15347 Update types in PDFPageViewOptions to properly declare optional parameters
#15355 Always focus the viewerContainer when entering PresentationMode (bug 1787456)
#15344 Enable the unicorn/prefer-array-find ESLint plugin rule
#15343 Use AbortController unconditionally with the Fetch API
#15341 Improve handling of the "Cancel"-button in the password dialog
#15346 [api-minor] Deprecate the imageLayer functionality
#15351 [api-minor][editor] Indicate, in the title, if the document has been edited (bug 1785854)
#15349 [editor] Remove the editorNone toolbar button (bug 1787295)
#15356 Update the Node.js atob/btoa compatibility info
#15357 Bump versions in pdfjs.config
#15259 [api-major] Remove the enhanceTextSelection functionality (PR 15145 follow-up)
#15286 [api-major] Remove (most of) the remaining deprecated code

A try:
https://treeherder.mozilla.org/jobs?repo=try&revision=ad422aac426ff0291ab584f23c2d9a0187fbb0e8

https://hg.mozilla.org/mozilla-central/rev/ed1571c2e70b