Bugzilla

**Affected versions**
* 71.0b9, 72.0a1 (2019-11-12) 

**Affected platforms**
* Windows 10, macOS 10.15, Ubuntu 18.04;

**Steps to reproduce**
1. Launch Firefox, access any webpage ex:  https://www.mozilla.org/en-US/
2. Open DevTools, Netmonitor, Blocking Tab;
3. Input the webpage address as a blocking pattern, press Enter key;
4. Click to edit the blocking pattern;
5. Press the Space key once;
6. Press the Enter key;
7. Click to edit the blocking again;
8. Type in anything you want;
9. Press the Enter key;

**Expected result**
* string added at step 8 is added as a new blocking pattern;

**Actual result**
* the same pattern remains, with space inside and the extra string added at step 8;

**Regression range**
* not a regression, only visible after implementation of bug [1580728](https://bugzilla.mozilla.org/show_bug.cgi?id=1580728);

**Additional notes**
* attached screenshot with the issue;

**Affected versions**
* 71.0b9, 72.0a1 (2019-11-12) 

**Affected platforms**
* Windows 10, macOS 10.15, Ubuntu 18.04;

**Steps to reproduce**
1. Launch Firefox, access any webpage ex:  https://www.mozilla.org/en-US/
2. Open DevTools, Netmonitor, Blocking Tab;
3. Input the webpage address as a blocking pattern, press Enter key;
4. Click to edit the blocking pattern;
5. Press the Space key once;
6. Press the Enter key;
7. Click to edit the blocking again;
8. Type in anything you want;
9. Press the Enter key;

**Expected result**
* string added at step 8 is added as a new blocking pattern;

**Actual result**
* the same pattern remains, with space inside and the extra string added at step 8;

**Regression range**
* not a regression, only visible after implementation of bug [1580728](https://bugzilla.mozilla.org/show_bug.cgi?id=1580728);

**Additional notes**
* attached screenshot with the issue;
* issue can be used to create duplicates or prevent addition of desired patterns;
* adding them by Copy-Paste is not affected (strings after links are added as different blocking patterns after the spacing).

**Affected versions**
* 71.0b9, 72.0a1 (2019-11-12) 

**Affected platforms**
* Windows 10, macOS 10.15, Ubuntu 18.04;

**Steps to reproduce**
1. Launch Firefox, access any webpage ex:  https://www.mozilla.org/en-US/
2. Open DevTools, Netmonitor, Blocking Tab;
3. Input the webpage address as a blocking pattern, press Enter key;
4. Click to edit the blocking pattern;
5. Press the Space key once;
6. Press the Enter key;
7. Click to edit the blocking again;
8. Type in anything you want;
9. Press the Enter key;

**Expected result**
* string added at step 8 is added as a new blocking pattern;

**Actual result**
* the same pattern remains, with space inside and the extra string added at step 8;

**Regression range**
* not a regression, only visible after implementation of bug [1580728](https://bugzilla.mozilla.org/show_bug.cgi?id=1580728);

**Additional notes**
* attached screenshot with the issue;
* issue can be used to create duplicates(normal link and link with space at end) or prevent addition of desired patterns;
* adding them by Copy-Paste is not affected (strings after links are added as different blocking patterns after the spacing).

**Affected versions**
* 71.0b9, 72.0a1 (2019-11-12) 

**Affected platforms**
* Windows 10, macOS 10.15, Ubuntu 18.04;

**Steps to reproduce**
devtools.netmonitor.features.requestBlocking - pref set on true

1. Launch Firefox, access any webpage ex:  https://www.mozilla.org/en-US/
2. Open DevTools, Netmonitor, Blocking Tab;
3. Input the webpage address as a blocking pattern, press Enter key;
4. Click to edit the blocking pattern;
5. Press the Space key once;
6. Press the Enter key;
7. Click to edit the blocking again;
8. Type in anything you want;
9. Press the Enter key;

**Expected result**
* string added at step 8 is added as a new blocking pattern;

**Actual result**
* the same pattern remains, with space inside and the extra string added at step 8;

**Regression range**
* not a regression, only visible after implementation of bug [1580728](https://bugzilla.mozilla.org/show_bug.cgi?id=1580728);

**Additional notes**
* attached screenshot with the issue;
* issue can be used to create duplicates(normal link and link with space at end) or prevent addition of desired patterns;
* adding them by Copy-Paste is not affected (strings after links are added as different blocking patterns after the spacing).