I don't have numbered precise STR just yet. But a brief description of my workflow is : - tab with https://bugzilla.mozilla.org/query.cgi?query_format=advanced (I use bugzilla "advanced search" extensively) - modify/edit the query several times by * clicking "edit search" at the bottom of the query results, edit fields, click search * back tab, edit fields, click search - repeat several times In my current example after some iterations of editing sessionstore.js is ~2mb, 660k of which is one tab [1]. [1] which takes only ~2k if you put it in a new tab and make no edits. [1] https://bugzilla.mozilla.org/buglist.cgi?v4=new%20window&o5=substring&bug_id=204999%20%20759089%20657253%20646218%20854221%20568410%20866974%20425546%201003924%20665196%20807028%20459341%20405620%20296968%20%20817266%20591713%20156333%20520752%20801950%20%20%20983330%20866236%20807290%20748226%20770760%20786992%20862874%201004066%20733706%20765511%20976929%20862416%20800208%201002858%20&bug_id_type=nowords&f1=component&o3=anywordssubstr&o7=nowordssubstr&short_desc=switch%20change%20changing%20switching%20new&bug_severity=major&bug_severity=normal&bug_severity=minor&f8=longdesc&v3=paste%20pasting%20focus%20ctrl%20n%20ctrl-n%20ctrl%20t&o1=nowordssubstr&j2=OR&resolution=---&resolution=WONTFIX&resolution=DUPLICATE&classification=Client%20Software&classification=Components&v7=tear%20running%20crash%20leak%20proxy%20canvas%20font%20intermit%20pdf%20audio%20drag%20flash&f4=short_desc&chfieldto=Now&v5=new%20tab&query_format=advanced&chfieldfrom=3y&f3=short_desc&f2=OP&o4=substring&short_desc_type=anywords&longdesc=paste%20pasti%20address%20&f5=short_desc&v1=css%20dom%20%20XPCOM%20XPConnect%20XUL%20%20embed%20tool%20session%20panorama%20Downloa%20pdf%20spell%20internat%20Documen%20syncInternati%20Disability%20select%20menu%20social%20html%20layout%20%20phish%20print%20ipc%20file%20theme%20extention%20JavaScript%20imag%20video%20search%20layout%20canvas%20web%20book%20developer%20network%20security%20build%20graph%20%20pref%20plug%20svg&f6=CP&longdesc_type=anywordssubstr&product=Core&product=Firefox&f7=short_desc&o8=anywordssubstr&list_id=10183208

browser.sessionhistory.max_entries 5 browser.sessionstore.max_tabs_undo 4