Join the AMA (Ask Me Anything) with the Firefox leadership team to celebrate Firefox 20th anniversary and discuss Firefox’s future on Mozilla Connect. Mark your calendar on Thursday, November 14, 18:00 - 20:00 UTC!

This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Avatar for Username

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

This thread was archived. Please ask a new question if you need help.

How to increase localStorage size to 20MB in Firefox 56 (in options, html, or javascript) ???

  • 2 replies
  • 2 have this problem
  • 1 view
  • Last reply by smorele

cucme
cucme
more options

I am writing an HTML5-Javascript video game. I want to save 2 files to PERSISTENT localStorage: one file can be 20MB in size... I have tried to increase the 5MB storage limit to 15MB & it does work. I have tried:

to SET max limit: window.webkitStorageInfo.requestQuota( 

           window.PERSISTENT,
           15000000,
           function( bytes ) {
               alert( "Quota is available: " + bytes );
           },
           function( e ) {
               alert( "Error allocating quota: " + e );
           });

and to READ current usage:

window.webkitPersistentStorage.queryUsageAndQuota ( 

   function(usedBytes, grantedBytes) {  
       alert('we are using '+ usedBytes+ ' of '+ grantedBytes+ ' bytes');
   }, 
   function(e) { alert('Error'+ e);  }

);

Try window. & navigator.webkit... I get error "webkit... undefined"

HELP??????

-Michael

I am writing an HTML5-Javascript video game. I want to save 2 files to PERSISTENT localStorage: one file can be 20MB in size... I have tried to increase the 5MB storage limit to 15MB & it does work. I have tried: to SET max limit: window.webkitStorageInfo.requestQuota( window.PERSISTENT, 15000000, function( bytes ) { alert( "Quota is available: " + bytes ); }, function( e ) { alert( "Error allocating quota: " + e ); }); and to READ current usage: window.webkitPersistentStorage.queryUsageAndQuota ( function(usedBytes, grantedBytes) { alert('we are using '+ usedBytes+ ' of '+ grantedBytes+ ' bytes'); }, function(e) { alert('Error'+ e); } ); Try window. & navigator.webkit... I get error "webkit... undefined" HELP?????? -Michael

All Replies (2)

cucme
cucme Question owner
more options

sorry TYPO: I have tried to increase the 5MB storage limit to 15MB & it does NOT work.

smorele
smorele
more options

try this:

  1. tape about:config in your url bare
  2. Accept by clicking on the button
  3. search dom.storage.default_quota
  4. update the value (in Kb)

If I were you, I would simply use this during my tests.