How to turn off caching on Firefox

Question

During development I have to  clear cache  in Firefox all the time in order to make it use the latest version of JavaScript files   Is there some kind of setting  about config  to turn off caching completely for JavaScript files  Or  if not  for all files

User · Answer

In firefox 45  disk cache options can be set by changing the value of  browser cache disk enable   The value can be set on the  about config  page   On http   kb mozillazine org About config entries Browser I found the following description for  browser cache disk enable    True  default   Use disk cache  up to capacity specified in browser cache disk capacity False  Disable disk cache  same effect as setting browser cache disk capacity to 0

User · Answer

There are pros and cons to the last two solutions posted  but they re both IMHO great solutions    You may or may not want your session ID embedded in your url like that for tighter security   But in development that shouldn t matter  but what if you forget to remove it  Also does that really work   Wouldn t you need something like a sequential number generator  hit count stored in the session  or maybe even just if 1 then 0  if 0 then 1   Adding a session id  or whatever sequencer  means you need to remember to add it to every resource you don t want cached   On the one hand that s better because you can just include your session id with just that resource you re actively developing and testing   On the other hand  it means you have to do that and you have to remember to remove that for production  Modifying the vhost conf or the  htaccess file does the trick nicely without the need to remember to add and remove the session id   But the downside is performance of all js and css resources will be affected  and if you have large files  that s going to slow you down      Both seem like great  elegant solutions -- depends on your needs

User · Answer

Have you tried to use CTRL-F5 to update the page

User · Answer

In firefox 45  disk cache options can be set by changing the value of  browser cache disk enable   The value can be set on the  about config  page   On http   kb mozillazine org About config entries Browser I found the following description for  browser cache disk enable    True  default   Use disk cache  up to capacity specified in browser cache disk capacity False  Disable disk cache  same effect as setting browser cache disk capacity to 0

User · Answer

Firefox 48 Developer Tools  Allows you to turn off cache only when toolbox is open  which is perfect for web development    F12 gearbox on right upper corner scroll down top Advanced settings check  Disable Cache  when toolbox is open       https   stackoverflow com a 27397425 895245 has similar content  but positioning changed a bit since

User · Answer

I use CTRL-SHIFT-DELETE which activates the privacy feature  allowing you to clear your cache  reset cookies  etc  all at once   You can even configure it so that it just DOES it  instead of popping up a dialog box asking you to confirm

User · Answer

If you re working with server side code you could generate a random number and append it to the end of the src in the following manner      src  yourJavascriptFile js randomNumber 434534   with the randomNumber being randomly generated each time

User · Answer

The Web Developer Toolbar has an option to disable caching which makes it very easy to turn it on and off when you need it

User · Answer

The Web Developer Toolbar has an option to disable caching which makes it very easy to turn it on and off when you need it

User · Answer

Enter  about config  into the Firefox address bar and set   browser cache disk enable   false browser cache memory enable   false   If developing locally  or using HTML5 s new manifest attribute you may have to also set the following in about config -  browser cache offline enable   false

User · Answer

Firefox 48 Developer Tools  Allows you to turn off cache only when toolbox is open  which is perfect for web development    F12 gearbox on right upper corner scroll down top Advanced settings check  Disable Cache  when toolbox is open       https   stackoverflow com a 27397425 895245 has similar content  but positioning changed a bit since

User · Answer

Enter  about config  into the Firefox address bar and set   browser cache disk enable   false browser cache memory enable   false   If developing locally  or using HTML5 s new manifest attribute you may have to also set the following in about config -  browser cache offline enable   false

User · Answer

You can use CTRL-F5 to reload bypassing the cache   You can set the preferences in firefox not to use the cache  network http use-cache   false   You can setup you web server to send a no-cache Expires Cache-Control headers for the js files   Here is an example for apache web server

User · Answer

There are pros and cons to the last two solutions posted  but they re both IMHO great solutions    You may or may not want your session ID embedded in your url like that for tighter security   But in development that shouldn t matter  but what if you forget to remove it  Also does that really work   Wouldn t you need something like a sequential number generator  hit count stored in the session  or maybe even just if 1 then 0  if 0 then 1   Adding a session id  or whatever sequencer  means you need to remember to add it to every resource you don t want cached   On the one hand that s better because you can just include your session id with just that resource you re actively developing and testing   On the other hand  it means you have to do that and you have to remember to remove that for production  Modifying the vhost conf or the  htaccess file does the trick nicely without the need to remember to add and remove the session id   But the downside is performance of all js and css resources will be affected  and if you have large files  that s going to slow you down      Both seem like great  elegant solutions -- depends on your needs

User · Answer

If you use FireBug  on the Network tab s drop down menu there is an option do disable the browser s cache

User · Answer

First of All  this can be easily done  for e g  by PHP to force the browser to renew files based on cache date  expiration time   If you just need it for experimental needs  then try to use ctrl shift del to clear all cache at once inside Firefox browser  The third solution is to use many add-ons that exits for Firefox to clear cache based on time lines

User · Answer

If you re working with server side code you could generate a random number and append it to the end of the src in the following manner      src  yourJavascriptFile js randomNumber 434534   with the randomNumber being randomly generated each time

User · Answer

Enter  about config  into the Firefox address bar and set   browser cache disk enable   false browser cache memory enable   false   If developing locally  or using HTML5 s new manifest attribute you may have to also set the following in about config -  browser cache offline enable   false

User · Answer

After 2 hours of browsing for various alternatives  this is something that worked for me   My requirement was disabling caching of js and css files in my spring secured web application  But at the same time caching these files  within  a particular session   Passing a unique id with every request is one of the advised approaches   And this is what I did  - Instead of   lt script language  javascript  src  js home js  gt  lt  script gt    I used   lt script language  javascript  src  js home js id   pageContext session id   gt  lt  script gt    Any cons to the above approach are welcome  Security Issues

User · Answer

After 2 hours of browsing for various alternatives  this is something that worked for me   My requirement was disabling caching of js and css files in my spring secured web application  But at the same time caching these files  within  a particular session   Passing a unique id with every request is one of the advised approaches   And this is what I did  - Instead of   lt script language  javascript  src  js home js  gt  lt  script gt    I used   lt script language  javascript  src  js home js id   pageContext session id   gt  lt  script gt    Any cons to the above approach are welcome  Security Issues

User · Answer

In higher versions of Firefox  like Nightly  there is an options named  disable cache   you can find it by clicking the gear  And that options works only in current session  which means when you close inspector and restart it  you have to check it again if you want catch disabled

User · Answer

I know I m resurrecting an ancient question  but I was trying to solve this problem today and have an alternate solution   Toggling caching when I want to test was not really acceptable for me  and as others mentioned  hard refreshing  ctrl shift r  doesn t always work   Instead  I opted to put the following in my vhost conf file  can also be done in  htaccess  on my dev environment    lt FilesMatch     js css    gt  FileETag None  lt IfModule mod headers c gt  Header unset ETag Header set Cache-Control  max-age 0  no-cache  no-store  must-revalidate  Header set Pragma  no-cache  Header set Expires  Wed  11 Jan 1984 05 00 00 GMT   lt  IfModule gt   lt  FilesMatch gt    On my dev environment  this ensures that js and css are always retrieved   Additionally it doesn t affect the rest of my browsing  and it also works for all browsers  so testing in chrome   ie etc is also easy   Found the snippet here  some other handy apache tricks as well  http   www askapache com htaccess using-http-headers-with-htaccess html prevent-caching-with-htaccess  To make sure that my clients always see the latest version on production  we increment the query string on the js include on each update  ie  jquery somefile js v 0 5   This forces my clients  browsers to update their local cache when they see a new querystring  but then caches the new copy until the file is updated again

User · Answer

I use CTRL-SHIFT-DELETE which activates the privacy feature  allowing you to clear your cache  reset cookies  etc  all at once   You can even configure it so that it just DOES it  instead of popping up a dialog box asking you to confirm

User · Answer

There is no specific option to disable caching only for JavaScript  you will have to disable caching entirely   FireBug has an option to disable the browser cache on the Network tab s drop down menu

User · Answer

Best strategy is to design your site to build a unique URL to your JS files  that gets reset every time there is a change   That way it caches when there has been no change  but imediately reloads when any change occurs   You d need to adjust for your specific environment tools  but if you are using PHP Apache  here s a great solution for both you  and the end-users   http   verens com archives 2008 04 09 javascript-cache-problem-solved

User · Answer

I know I m resurrecting an ancient question  but I was trying to solve this problem today and have an alternate solution   Toggling caching when I want to test was not really acceptable for me  and as others mentioned  hard refreshing  ctrl shift r  doesn t always work   Instead  I opted to put the following in my vhost conf file  can also be done in  htaccess  on my dev environment    lt FilesMatch     js css    gt  FileETag None  lt IfModule mod headers c gt  Header unset ETag Header set Cache-Control  max-age 0  no-cache  no-store  must-revalidate  Header set Pragma  no-cache  Header set Expires  Wed  11 Jan 1984 05 00 00 GMT   lt  IfModule gt   lt  FilesMatch gt    On my dev environment  this ensures that js and css are always retrieved   Additionally it doesn t affect the rest of my browsing  and it also works for all browsers  so testing in chrome   ie etc is also easy   Found the snippet here  some other handy apache tricks as well  http   www askapache com htaccess using-http-headers-with-htaccess html prevent-caching-with-htaccess  To make sure that my clients always see the latest version on production  we increment the query string on the js include on each update  ie  jquery somefile js v 0 5   This forces my clients  browsers to update their local cache when they see a new querystring  but then caches the new copy until the file is updated again

User · Answer

I use CTRL-SHIFT-DELETE which activates the privacy feature  allowing you to clear your cache  reset cookies  etc  all at once   You can even configure it so that it just DOES it  instead of popping up a dialog box asking you to confirm

User · Answer

There is no specific option to disable caching only for JavaScript  you will have to disable caching entirely   FireBug has an option to disable the browser cache on the Network tab s drop down menu

User · Answer

You can use CTRL-F5 to reload bypassing the cache   You can set the preferences in firefox not to use the cache  network http use-cache   false   You can setup you web server to send a no-cache Expires Cache-Control headers for the js files   Here is an example for apache web server

User · Answer

Enter  about config  into the Firefox address bar and set   browser cache disk enable   false browser cache memory enable   false   If developing locally  or using HTML5 s new manifest attribute you may have to also set the following in about config -  browser cache offline enable   false

User · Answer

The Web Developer Toolbar has an option to disable caching which makes it very easy to turn it on and off when you need it

User · Answer

First of All  this can be easily done  for e g  by PHP to force the browser to renew files based on cache date  expiration time   If you just need it for experimental needs  then try to use ctrl shift del to clear all cache at once inside Firefox browser  The third solution is to use many add-ons that exits for Firefox to clear cache based on time lines

User · Answer

Best strategy is to design your site to build a unique URL to your JS files  that gets reset every time there is a change   That way it caches when there has been no change  but imediately reloads when any change occurs   You d need to adjust for your specific environment tools  but if you are using PHP Apache  here s a great solution for both you  and the end-users   http   verens com archives 2008 04 09 javascript-cache-problem-solved

User · Answer

If you re working with server side code you could generate a random number and append it to the end of the src in the following manner      src  yourJavascriptFile js randomNumber 434534   with the randomNumber being randomly generated each time

User · Answer

In higher versions of Firefox  like Nightly  there is an options named  disable cache   you can find it by clicking the gear  And that options works only in current session  which means when you close inspector and restart it  you have to check it again if you want catch disabled

User · Answer

Best strategy is to design your site to build a unique URL to your JS files  that gets reset every time there is a change   That way it caches when there has been no change  but imediately reloads when any change occurs   You d need to adjust for your specific environment tools  but if you are using PHP Apache  here s a great solution for both you  and the end-users   http   verens com archives 2008 04 09 javascript-cache-problem-solved

User · Answer

If you use FireBug  on the Network tab s drop down menu there is an option do disable the browser s cache

User · Answer

You can use CTRL-F5 to reload bypassing the cache   You can set the preferences in firefox not to use the cache  network http use-cache   false   You can setup you web server to send a no-cache Expires Cache-Control headers for the js files   Here is an example for apache web server

User · Answer

Have you tried to use CTRL-F5 to update the page

User · Answer

If you re working with server side code you could generate a random number and append it to the end of the src in the following manner      src  yourJavascriptFile js randomNumber 434534   with the randomNumber being randomly generated each time

User · Answer

Best strategy is to design your site to build a unique URL to your JS files  that gets reset every time there is a change   That way it caches when there has been no change  but imediately reloads when any change occurs   You d need to adjust for your specific environment tools  but if you are using PHP Apache  here s a great solution for both you  and the end-users   http   verens com archives 2008 04 09 javascript-cache-problem-solved

User · Answer

You can use CTRL-F5 to reload bypassing the cache   You can set the preferences in firefox not to use the cache  network http use-cache   false   You can setup you web server to send a no-cache Expires Cache-Control headers for the js files   Here is an example for apache web server

User · Answer

The Web Developer Toolbar has an option to disable caching which makes it very easy to turn it on and off when you need it

User · Answer

I use CTRL-SHIFT-DELETE which activates the privacy feature  allowing you to clear your cache  reset cookies  etc  all at once   You can even configure it so that it just DOES it  instead of popping up a dialog box asking you to confirm

User · Answer

On the same page you want to disable the caching do this   FYI  the version am working on is 30 0  You can          After that it will reload page from its own  you are on  and every thing is recached and any furthure request are recahed every time too and you may keep the web developer open always to keep an eye and make sure its always on  check

User · Answer

Have you tried to use CTRL-F5 to update the page

User · Answer

Have you tried to use CTRL-F5 to update the page

User · Answer

On the same page you want to disable the caching do this   FYI  the version am working on is 30 0  You can          After that it will reload page from its own  you are on  and every thing is recached and any furthure request are recahed every time too and you may keep the web developer open always to keep an eye and make sure its always on  check

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