Firefox (unlike Chrome) seems to follow the HTML5 definition for stepping up the value of an input type=number element. When the value is not set, as it here isn’t initially, it is interpreted as 0, so the result of incrementing is 1. The preference browser.sessionhistory.maxtotalviewers affects how many pages Firefox stores in such a way that they load super fast. Default value: – 1 (adaptable) Modified value: any number, reflecting the number of pages you want to store. (We recommend less than 4 if your PC is struggling for speed, while those with 4GB plus can go for 8.
The following table shows a mapping between geckodriver releases,and required versions of Selenium and Firefox:
| geckodriver | Selenium | Firefox | |
|---|---|---|---|
| min | max | ||
| 0.29.1 | ≥ 3.11 (3.14 Python) | 60 | n/a |
| 0.29.0 | ≥ 3.11 (3.14 Python) | 60 | n/a |
| 0.28.0 | ≥ 3.11 (3.14 Python) | 60 | n/a |
| 0.27.0 | ≥ 3.11 (3.14 Python) | 60 | n/a |
| 0.26.0 | ≥ 3.11 (3.14 Python) | 60 | n/a |
| 0.25.0 | ≥ 3.11 (3.14 Python) | 57 | n/a |
| 0.24.0 | ≥ 3.11 (3.14 Python) | 57 | 79 |
| 0.23.0 | ≥ 3.11 (3.14 Python) | 57 | 79 |
| 0.22.0 | ≥ 3.11 (3.14 Python) | 57 | 79 |
| 0.21.0 | ≥ 3.11 (3.14 Python) | 57 | 79 |
| 0.20.1 | ≥ 3.5 | 55 | 62 |
| 0.20.0 | ≥ 3.5 | 55 | 62 |
| 0.19.1 | ≥ 3.5 | 55 | 62 |
| 0.19.0 | ≥ 3.5 | 55 | 62 |
| 0.18.0 | ≥ 3.4 | 53 | 62 |
| 0.17.0 | ≥ 3.4 | 52 | 62 |
Clients¶
Selenium users must update to version 3.11 or later to use geckodriver.Other clients that follow the W3C WebDriver specificationare also supported.
Firefoxen¶
geckodriver is not yet feature complete. This means that it doesnot yet offer full conformance with the WebDriver standardor complete compatibility with Selenium. You can track theimplementation status of the latest Firefox Nightly on MDN.We also keep track of known Selenium, remote protocol, andspecification problems in our issue tracker.
Firefox Maximize On Top Taskbar
Support is best in Firefox 57 and greater, although generally the morerecent the Firefox version, the better the experience as they havemore bug fixes and features. Some features will only be availablein the most recent Firefox versions, and we strongly advise using thelatest Firefox Nightly with geckodriver. Since Windows XP supportin Firefox was dropped with Firefox 53, we do not support this platform.
Android¶
Starting with the 0.26.0 release geckodriver is able to connectto Android devices, and to control packages which are based on GeckoView(eg. Firefox Preview aka Fenix, or Firefox Reality). But it also stillsupports versions of Fennec up to 68 ESR, which is the last officiallysupported release from Mozilla.
To run tests on Android specific capabilities under moz:firefoxOptionshave to be set when requesting a new session. See the Android section underFirefox Capabilities for more details.
Firefox Max
Firefox automatically uses settings that work best with your computer. You can modify these settings in your Firefox OptionsPreferencesSettingsPreferences page. In the Menu bar at the top of the screen, click Firefox and select Preferences.Click the menu button and select ... In the General panel, go down to the Performance section and uncheck the box next to Use recommended performance settings. You will then be able to change the following settings:
Use hardware acceleration when available: This setting allows Firefox to use your computer's graphics processor, if possible, instead of the main processor, to display graphics-heavy web content such as videos or games. This frees up resources on your computer so it can run other applications, like Firefox, faster. This box is checked by default but the feature isn't available for all graphics processors. You must restart Firefox after changing this setting, before it will take effect.
Content process limit: With Multiprocess Firefox, also called electrolysis or e10s , Firefox runs web content for all tabs separately from the main Firefox process for increased security and performance. Using multiple content processes can further increase performance and minimize the impact of content process crashes. You can modify this setting to increase or decrease the content process limit.
Firefox Maximize Shortcut
The recommended maximum is four but you can set up to seveneight content processes; however, having too many content processes can slow down your computer, and consequently, Firefox.You can set between one and eight content processes. The default is eight. Having more content processes can improve performance when using multiple tabs but it will also use more memory. You can reduce the number of content processes if your computer is running out of memory.
Firefox Maximize Window